454 tbi roller cam 447 intake; 208/. If anyone knows different, please update. 050 - . Tbi engines get a bad rap but if you do lots of hand work they will run very well and reliable. Reusing pistons, just honing The L31 roller cam is quite similar in timing to the old 300 horse cam used in the high compression 327 and the lower compression 350 both with 4bbl carb back in the late 60’s early 70’s. I'm going to be rebuilding to stock spec. I am replacing the cam in my 454 engine. Free Shipping; BUILD IT WITH SUMMIT! Filter my search results to see Summit Racing brand parts. 6 rockers without problems) - 14093643 350 TPI 87-94 roller 202/. I have not found concrete feedback on physical size and flow rate differences between 5. L31MaxExpress said: Duration increases at the valve where it DOES make a noticeable I have a 1990 dodge d250 with a 360 tbi auto trans elect fuel pump and I want to go from a roller cam to a non-roller cam. These My cam sugestion would be, Low and mid range GRUNT & POWER ,,,Go to a local Chevy dealer and get a 454 Motor home cam. My engine came out of an '87 454 Sub, non roller and the cam specs had the torque peak at 1600rpm. You can swap a set of small cc (intake runners) Mark IV heads and an aftermarket intake and a small cam, but the TBI won't support the added power. Currently running a 1996 full roller VORTEC 4 bolt Gen VI , big valve alum. 56 geared truck). Install new Summit cam with bottle of break in additive and tell him to use offroad oil or always add a bottle of additive to it at every oil change. Estimated Ship Date: Tomorrow. 459 exhaust; LSA 117 My '91 has a Competition Cams roller cam and roller rockers. If you can afford to go roller, GO Find great deals on eBay for Tbi 350 Cam. Don't buy the fancy trick plug of the month, they're usually junk. the stock tbi leaves a bit to be desired, parts are scarce, throttle shaft leaks, injector issues etc. Anyways, the proclivity of these engines to eat cams might add a little more weight to going roller, but failed cams still seem to be in the minority on I've got a 1993 Chevy Suburban K2500 with the GEN V 454 TBI (4 bolt mains). run a 454 tbi, run my tbi dist/computer, and long tubes. I found a brand new, never run 383 stroker with Dart aluminum heads, SCAT crank, roller TBI cam, roller rockers, and a 454 TBI for $3,000. The big TBI with 80 pound injectors, Vortec heads and the Edlebrock cam will easily make a 300 horse engine. C $502. Truck was originally a 454, but previous owner swapped in 350. the 454 will at least have the heads worked a little, gen 6 454 roller cam, headers and a few odds and ends. Assuming my cam is in good shape, keep the stock cam in there and use Crower Cam saver lifters. No fuel pump mount cast into the block. I put the rockers on first and later the TBI spacer/454 TBI. 050 . Crawler has 1993 stock Hey guys building a 454 in a 86 chevy dually for towing a toy hauler. As what i have bin told, the TBI likes a lot of vaccum?. Then on to a 95 and it was a roller cam engine. We found some AC Delco 454 injectors brand new and so tried to use that instead of running the 350 injectors at 18psi since I just did this to my 93 c3500 350 TBI. Tkimble01 Discussion starter. No one else ok i need to know if my 1989 TBI 350 has a roller cam or a flat teppet hydraulic cam in it. I would like to rebuild it more for torque than horsepower. Send Private Topic View Profile. Thats what I have in my 468 driver. T. With this cam you will be able to tow in many areas in OVERDRIVE between 55-70mph! This is ideal for Rated 5 out of 5 by RIPPER 1 from Comp Cam Magnum Hydraulic Roller Single Pattern Killer street performance BBC roller camshaft. 10-31-2016, 11:45 AM #3: dipstick67. 7 tbi (with all the tbi mods), 5spd, You will have an easier time due to having an older MarkIV 454. Yes, I said not even spring changes, so this would be a mild buy it a friend took a 98 or 99 BBC 7. Save Share COMP Cams Computer Controlled Hydraulic Roller Tappet Cam Kit RPM Range: 1000-5000 $1,170. One bit of advice. 03-30-16 07:28 PM - Post# 2618747 Hello all, I'm going to be doing a basic rebuild on the TBI 454 in my 1992 C3500 and I'm curious about some stuff. the 454 truck tbi system is easy to tune with very affordable hardware, been burning chips for these trucks for 20 yrs. Brighton 1955 Chevrolet Cameo Pickup SKU:AA1011. As I remember working at GM back then the Vortec engine came out in 1997 with the new Vortec heads and new intake on the Mark V engine. Junior Member . by the way this is bored . 3 BBC Cam -ROLLER CAMSHAFT & LIFTERS-Opens in a new window or tab. With un-ported peanut port heads, a COMP XE268H10 non-roller cam,and domed pistons, they found 449 HP, and it pulled 5500. O. 5 Get the Best Performance with Speedmaster Cast Aluminum Cylinder Head Big Block Chevy 454 w/Hydraulic Roller Cam PCE281. Stock TBI intake manifold port matched to heads, 2 bbl bored I do realize that getting above 2teens at . Rock-n-Roller: Adding a Roller Cam to our Junkyard 454 Paid Off Big! Richard Holdener Writer Jul 01, 2015. EVER! Joined Jul 15, 2018 Messages 2,044 Reaction score 3,537 Location Canton, Ohio. wouldnt run right at all and with the donor computer, it ran somewhat better, but got worse. GMOTM Winner. 38 posts · Joined 2005 Add to quote; Only show this user #1 · Jun 6, 2006. 5. Nov 15, 2016 #1 cool_as_crap I'm Awesome. Day. - Holley 670 CFM TBI and injector set for big block, this will flow 670 cfm with about 80 pound per hour injectors which will fuel for 330 hp. The ones they put in their roller setups are different but I've never used them so I can't comment on those. 13 watchers. shift + opt + o. Mods are 1-3/4" headers, Edelbrock TBI intake, modified throttle body, roller rockers (intake and rockers came with the engine), Comp Cams TBI cam and tuning changes based on a tune EagleMark did. Available from various suppliers for about $275 -300 per cam. That should make at lease 300hp at the wheels and close to 450-475 ft/lbs. Comes in at 8-900 and dies around 42-4300, With power out the AZZ, Alright, I like how this is turning out So the stock TBI is back in from the Cold, just going to give it a little bit of love with the grinder. You need the roller cam, cam retainer plate and screws, roller lifters, dog bones amd spider with bolts. The TBI engine had peanut port heads, mild cam, headers and Edelbrock TBI intake. It was mostly complete. which heads to use . com/Myvintageiron7512 Roller rockers were a very noticeable gain from about 2,500+. I realize you guys cater more to tuning. I just can't help think of how much better a 9-1 454 would run with duration in the mid 220s vs 210s. So it will get a flat tappet cam L19 454 : Big Block Workhorse. 8morrison 1989 Silverado 454 3500. Unfortunately the I was trying to find Stock OEM 454 Cam Specs so I'd know what the starting point would be when I decide to upgrade my cam and intake. torque. I have a 454 TBI. Just pick a cam, get the matching springs, pushrods and guide plates and source a used set of 049 or 781 heads to have redone. It is an Cam/Lifters, Valvetrain, Hydraulic Roller Tappet, Advertised Duration 276/282, Lift . Power ratings remained at 230HP@3600rpm, and 385TQ@1600rpm, barring the 454SS trucks. It seems pretty strong. from United States. I even considered a stock roller cam from a newer vortec. Engine runs perfect. 107 posts · Joined 2024 Add to quote; Only show this user Headers, TBI adapter plate that allowed me to run the TB on an Edelbrock performer, . 4L/454 Camshaft Kits Hydraulic roller, OE roller Cam Style and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY 454 TBI unit would definitely be better in airflow and fuel flow when it comes to that 350 TPI, Ported 906 Vortecs, Edelbrock 3817 Base, ASM oversize runners. All he used was the VAFPR and about 2* advance - Vortec to TBI intake - Vortec roller cam 14097395 with a roller lifter set, spider, dog bones, thrust plate. It pulled the trailer well, just about Your '89 Chev 454 is not a roller cam engine. Per Comp Cams: A COMP RETRO style hydraulic roller should be what you want if you still have a '91 block. 4L/454 Top End Kits and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY Vehicle/Engine Search Vehicle/Engine Search Thanks to all for the feedback. There is no need for a cam button etc. 7 tbi motor. Joined May 31, 2016 '88 5. 496 lift with Comp Magnum 1. Prolly somewhere >< 500 to 550 HP. and bored the block . The 1993 454 is a Mark IV engine and will have Peanut Port heads and a flat tappet camshaft. i just don't have them eventually, i want to find another b-body lt1 and slap in a torquey cam, 383 crank, and a four barrel intake with a tbi adapter. Works for me. Let's make topic duration/overlap vs economy on a carb'd 454 towing 5000-8000. impalaman355 Discussion starter. Buy It Now +C $51. It required more fuel in the tune so it makes more power. explain what you did in more detail to make it work for you. You can go to aluminum heads and 10. The throttle body was there but the injector pod and injectors were gone. I suppose that I'm suffering from hotrodder more is better. They took out the Hyd Roller cam and put a XE274H hyd tappet cam in and got: RPM HP TQ 3000 285 500 3500 345 517 4000 409 538 4500 452 528 5000 479 503 5500 506 483 All with an 8. Jump to Latest 35K views 6 replies 5 participants last post by badrad May 4, 2013. Choppy idle runs hard to 6200 - 6300 rpm. Many of those blocks were made ready to use a roller cam, but they had a flat cam installed. $5,500. 510/. 6 rockers, Edelbrock 3704 intake - Bored to 52mm - 454 throttle body, Delco EP381 fuel pump @ 18 psi running through 80# 454 injectors. 95 Estimated to ship direct from manufacturer on 01/16/25, pending manufacturer availability. In this application would you go to bigger valves or keep the stock size. 4 engine with vortec heads. 050. The vast majority of 89-93 caprices came with the L03. If its a stock LT1 cam, its also not much bigger than the TBI cam. Jump to Latest 78K I'm in need of a cam. The older Ramjet 350 was rated about 5 hp higher with 1. I am working up to doing some upgrades but trying to figure out what CAM I may already have and what my compression ratio is. Designed for 1987-95 TBI-equipped big-blocks, these new 50-state emissions legal (E. Power and mpg is quite a bit better than a stock tbi 454. for 454 SS truck?? - Im going to build my truck engine for my 454SS truck 1990. And roller cam motors are better in general. I have read that the '94 - 95 454's ran a higher 29-32psi Tried to find GM's dyno chart for the HT383,but,IIRC,the torque started comin on @ 2000 & pretty much flatlined over 400 ft/lb out to 4600 or so w/ the 7395 cam. After reading it all, I think it's still very close to the original plan. 43 out of 5 stars. Or can I swap the tbi to a 4bbl carb? Does anyone know what to use and what the cam specs for Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Advertised Duration 283/303, Lift . Plan on tuning, I have not had it tuned yet, but need to. Good for towing or hauling junk, not good for performance. It's basically a stock TBI I'd run this cam with those stock heads and TBI. You need a computer friendly cam for your TBI in order to have While my engine's getting rebuilt, I'm gonna take this opportunity to slap a mild (READ: smog legal) cam in it. 6 intake and 1. If I went hyd tappet I could TBI 454 gets set to 4*BTDC with the timing wired disconnected, IIRC . This block has all the holes tapped for a roller cam setup but still uses a flat tappet. allweld488 said: I have a 87 with a 92 engine 5. However in some 93, all 1994 and 1995 engines GM stopped drilling and tapping the bolt holes in the those provisions in Would like to get some real answers on the question of what is the largest cam i can run in a stock 93 chevrolet pickup with a 5. The guy did a different intake manifold with an adapter to keep the tbi. 2033 parts at JEGS. I (The Vortec cam will run with 1. Hi all, I’ve got a 1990 gmc with the 454 in it. 7:1 compression ratio. the chip had to be sent back to edelbrock and redone to the roller cam specs. I'm open to suggestions for TBI upgrades. I would like to use aluminum heads but think ports would be Scott @ LKN Speed set out to build a potent, low-budget Vortec TBI smallblock package for customers and used his own work truck as the test mule. please help me!! boz42 1/2 ton status. Going beyond that takes a custom chip in the TBI computer. 7 and put a BBC roller 502 cam shaft in it. Is there a better alternative to the LT4 cam? like the COMP 08-300-8? which is similar in duration but I´m guessing gets more aggressive(to aggressive for Daily driver reliability?) than the LT4 after the 050 lift point. Now I have a 99 and it is the Vortec engine. Because of its impressive RPM operating range, which is said to be 2000 and 7000, this camshaft is known for its incredible power Hey guys, One of the members of GMT400 recommended your sight. Denver 1994 Chevy Winnebago Chevy 454 TBI motor. General engine tech -- Drag Racing to Circle Track. I paid $40 for my cam and another 50 or 60 recently for a nice used set of lifters, spider, dog bones, and wear plate. 9%. I also have a friend that put a 270 in a 92 chevy and it run fair with a vaccum canister. Specs on the cam are as follows: Valve Lift Intake: . I changed a couple things. Upgradeing a TBI 5. Much better than the TBI 250 and 390. The L31 head doesn’t like much lift somewhere between . 452 lift, 197 / 206 duration. It is one of the more recommended cams for TBI big As for what cam to run, my recommendation is a Summit Racing SUM-K1300 http://www. " NICE" piece of shat. 050", even with wide LSA with tbi would be a bad thing. Long tubes and custom dual 3” exhaust. the short block may be rebuilt depending on what i find. All of the cam companies i have called give the same answers "we From 1990 to about 95-96, those are Mark V engines. I have an 89 c1500, rcsb, 5. 94 shipping. Go through the list and choose the product that you like most. 566. I got ALL of this stuff from a wrecking yard out of a "Vortec" 96-2000 Suburban i have a 454 . EDIT: if in doubt, obtain one for a 5. Posts: 22 Quote: The TBI isn't the 'biggest' restriction to overcome on a stock late-80's/90's 454 - it's the heads The TBI 2-port throttle body (flow @600cfm), the intake and the Peanut-port heads are barely capable of 350HP MAX. I just tuned one locally. shift + opt + h. 1 piece rear seal is likely machined for a roller cam retainer plate. It had eye brow pistons and peanut port heads. jba shorty headers with a fu 355/th350/np203, 454/th350/ff-rear. Even with stock compression, you would probably be close to your desired These camshaft / lifter kits are perfect for use with BBC 454 to 470 CID with Air Flow Research 265 or 290 Oval Port heads to max of 6000 rpm. Jump to Latest 5. If I was running on the street with the 350 a 650cfm holley carb (dual line mechanical secondary 4150 Isky roller cam - 204/209 dur @ . I didn't want to spend the money so I ended up with 454 Cam Selection. 5, which would be a little better. Save Share Reply Quote Like. 7 rockers, and some tbi tweaking with a good intake manifold will get you plenty of horsepower thats usable and daily drivable. You also need a distributor gear for the shaft dia. NMNorsse; Mar 7, 2024; Engine Performance + Maintenance; Replies 9 Views General Q & A - What roller cam spec. Using the factory heads whicb are the 045's. vortecpro Guru Posts: 1868 Joined: Sat Apr 25, 2009 3:10 You gotta watch the factory roller setup from a 454 Sub. Nothing wrong with the '93 engine just port the heads and add My Dad told me it was the Heavy Duty Truck engine with roller cam and 4 bolt main that sold for around $2600 back then. Before I built this suburban, I did all my towing with my 90 f350 diesel. 4 454 vortec engine and rebuilt the vortec heads with beehive springs ect. Reed Custom Roller cam, 700r4, 12 bolt with 3. Free ShippingLoading Estimated Ship Date: Tomorrow. 8K views 2 replies 3 participants last post by Silver Surfer Apr 10, 2012. $150. opt + / Cart. Sponsored . $3,900. BROOMFIELD small block 454 with a Comp K11-302-4 cam. I have the injector pod fuel regulator bypassed with a efi boost fuel regulator that’s 1:1. Another TBI motor found in trucks was the 7. (just like most all of I'm not sure if there 's a specific thread on this or not but I'm hoping to gather some info on upgrading a gen V 454. User Info. Dude was going to put it in a truck as a towing engine due to the torque specs. The roller cams just cost too much. Estimated Ship Date: Today. L29 454 Cam upgrade - Towing. Skip to; Main content; Keyboard shortcuts Search. Angle: Advertised @ . I bought it with 127k miles on it, with no knowledge of its past usage or maintenance, and it had clearly been sitting for years. If you are trying to get torque up in a 1992-19996 454 TBI engine in a 3/4 ton truck on the CHEAP! your actual changes are somewhat capped but you can make a pretty COMP Cams Computer Controlled Hydraulic Roller Tappet Cam Kit RPM Range: 2000-6000 $901. Part Number: CCA-K11-600-8. It still is a low comp motor, but has 781 heads and a vortec roller cam, and edelbrock performer intake. In. I've been planning the 383 for a while now and have accumulated some parts: a 4-bolt main, '90 350 for the block, rebuilt vortec heads, GM 4-barrel vortec intake and adapter for TBI, and complete roller valve train from a vortec 350 (cam, Roller cam will give you the same power as a flat tappet cam that is about 15 degrees duration bigger or about 10-15hp more than the same duration flat tappet cam. The LT1 is also a roller cam. If we look at a stock cam for that engine, which I think is the 544 cam, we can determine some parameters that we know works with the stock TBI. the gen 5 unless im mistaken has the coolant lines run into the oil filter housing which can be changed out. #D-215-33) heads have a 100cc combustion chamber for an increase of over one full point of compression to 8. it was pulled from a 1996 p30 camper van narrow front. It has to be California smog compliant I'm trying to decide between building a 383 with vortec heads vs swapping in a stock (relatively) 454 TBI from a donor truck. They have a reputation of making lots of Then I read an article by corvette fever about testing cam profiles in a 454. I'd like to see what you guys suggest. Shop by category . It is otherwise stock except for the previous owner having milled the heads to get a ~9. 500 lift on a 112 Edelbrock TBI intake and modified trottle body, chip etc. GM Performance Parts makes a cam that works in teh SS trucks. summitracing. comp magnum 1. I. For some reason the lunati 454 hydraulic roller cams are still marked about 2/3 the price of a comparable comp cam offering. patreon. All of the 454 blocks are drilled for the cam plate screws. There is a chance that your TBI engine is not a roller block so you would need retrofit lifters. Throw a 96+ vortec manifold on it, you get good flow, REAL injectors, and you can swap to the 0411 ECM at the same time. Would spit out the 10 bolt with regularity. this one has them run directly into the block. Rock-n-Roller: Adding If you need plugs, I'd stick with AC Delco or NGK. In 1996 production switched to the Mark VI, which does again have a fuel pump mount, along with other interesting things. Joined Jun 3, 2015 Messages 189 Reaction score 63 Location Central Arkansas. Im building a gen VI 7. Feb 14, 2017 #3 Rusty Nail Full Access Member. Shop Now at the Guaranteed Lowest Price! $5 off $49 / $15 off $249 / $30 off $499 / $65 off $999* - Use Promo Code: 2025. 5 out of 5 stars ( 2 ) Greetings, So I pulled a TBI 454 at the wrecking yard recently from a 1995 GMC 3500 1-ton van. 1. Home. 24 posts 1; 2; Next; 496blaze Member Posts: 69 Joined: Sat Feb 10, 2007 6:45 am Location: 350 TBI Cam . I once did a 440 bored out 427 with 2. Denver 1994 vectra rv. There's a Comp hydraulic-roller retrofit cam setup that is supposed to work very, very well in this engine, but it'll cost you a thousand bucks for all the hardware. 5 cr with iron heads. tbi motors need a good vaccum signal to run, higher lift and shorter duration will net u the best results, more flow while maintaining driveabilty. 02, not sure if 671$ for a cam and lifter kit This is a great option for your needs. Free ShippingLoading Estimated Ship Date: Today. I seem to recall that 454 is a flat tappet motor. This allows you to run a milder roller cam that gives you better low end torque and horsepower and have the same peak horsepower as a cam that will have weaker low end power. Perfect combination as far as I I just fired a 454 we put together using Howards 91167 on a ZZ502 cam,they are dead quiet. forged 9. Needless to say it didn’t run well with stock fuel system and chip when it arrived. 500. The LT1 is a roller cam. Steve A I'm Awesome. How to Pick Up Big Power On a Junkyard 454 With a Simple Cam Swap. 95 Estimated to ship direct from manufacturer on 01/10/25, pending manufacturer availability. My engine is a 454 from the mid 70s and has a 750 carb, headers, comp cams stamped steel roller rockers, heads are stock, TH400 trans, NP205, 4:10 gears. Denver 1968 GMC Super Custom 4 x 4 PU. If you just want to swap out a stock head, that shouldn't be a problem. I will have to look for casting numbers, but Gen 6 (VI) 454 (7. Join Date: Jan 2007. Did not dyno, just stteet tune with wideband. I would like to get the compression up to 91/2 to 10 to one and Howards retro fit rollar cam. 1983 G20 Van, 350 TPI, Ported 906 Vortecs, Edelbrock 3817 Base, ASM oversize runners. 4) should find something in a search. Ask me how I know. Top. 19/1. I have already read some pretty interesting things in the short time I have been snooping through the threads. I run it on propane which likes higher compression. A hydraulic roller cam will be a good option for a hot-rodded street engine. 283 : 290: 223 : 230 . 30over 11 to 1 cr 280 duration hydraulic roller cam ported and polished 427 closed chamber heads not sure but in the 500hp range, has a 900 holley tbi howell harness gm ecm with a custom burned chip it runs good idle to full bore. Is it possible to swap in a roller cam that has a similar profile to the factory flat tappet? If so, anyone got a part# This is a stock build. 4. michael Another important thing to ask. 7 and 7. This is in my mud truck NOT my crawler. 443 Magnum roller cam, (Mopar Performance 300 hp service cam and lifter kit), headers, dual exhaust with hi flow cats and mufflers and K&N air filter. Try to find the torque specs. All 1987 blocks have the provisions for the roller cam just the trucks didn’t get them. Reason for edit: No reason given. 7 roller rockers. 050" 4-bolt main L05 short block bored 30 over freshened up with ARP rod bolts, H423DCP-30 pistons, moly rings and a standard volume, high pressure oil pump, mildly ported and polished vortec heads with upgraded springs for higher lift and roller cam, crusader marine vortec/tbi intake (identical to gmpp without egr provisions), comp 252xfi hr13 cam I bought a running 1993 church bus with a running 454 tbi, 4l80e trans for my 1983 1 ton truck. 7 Roller cam conversion. It's more of a "performance" oriented cam but is totally obsolete; has been losing races for 40 years that I know of, probably longer. Send They got a customer in with a TBI Camaro with a ZZ4 355hp 350 crate engine installed. 90@113 MPH If you intend to use any other cam than the stock hydraulic cam that came in a MARK V or MARK VI (gen 5 or gen 6 BIG BLOCK CHEVY) you'll most likely want to install one with more lift or duration to increase performance, that means you'll most likely need to upgrade the valve train to an adjustable valve train,IN most cases the use of the conversion studs with the 3/8" 16 lower you can get the TBI to support a reliable 300 RWHP. 555 Valve Lift Exhaust: . Put a set of 1. It is also 10:1, which you probably don't want to do because it has to have premium gas. Mine-1969 El Camino 454 T Find CHEVROLET 7. Joined Jul 30, 2010 Posts 8,479 Reaction score 1,110 Location West BY-GOD Virginia First Name Curt Truck Year 1979 Truck Model K-10 Engine Size Cannot talk him into a roller cam. 350 TBI Cam. IDK what mods if any you have or will have for the TBI,but,with a stock unit,you'll run outta fuel way before you run outta cam with either of those Any cam experts out here that can give opinions on the specs vs what was stock in the 1995 454 SS TBI? I'm running 32PSI fuel pressure but could up it a little bit if needed to compensate for the cam. Now we will tell you the best camshaft for your Stock 454 engine that can deliver the best results possible. 1 pistons or 18cc dome pistons with 156 casting heads. The TBI motor also came in a 350 version in Chevrolet Caprice Classics. Joined Jun 3, 2003 Posts 3,181 Reaction score 0 Location Hopewell, Tn 38058. but it was daylight and dark difference. Sure makes me rethink my hyd roller cam idea. 575: 114° Note: These are non I changed out a 350 in a 79 C30 Dually to a 92 454 TBI, man what a difference. com/parts/sum-k1300 208/218 duration @ . If you have built your teenage dream car and put AFR oval ports on it than there is no doubt Roller versus flat tappet cams. 555 Duration Intake: 280 Duration Exhaust: 288 Duration at 050 Intake: 227 Duration at 050 Exhaust: 235 Lobe Separation: 109 Intake Centerline: 103 350-454 '87 and later V8 cars got roller cams, with carb, TBI, and TPI. . Also, this type of camshaft can hold the valve open for longer. Skip to main content. Generally the major differences are in the rate of lift that can be employed at various places in the lift curve. I know about the peanut port heads. Feb 14, 2017 #10 S. I don't know if the same dizzy in a TBI truck got the melonized gear, but a replacement from the parts store (or MSD) for a car will have the correct gear for sure. Most hydraulic roller cams are made with a cast iron gear so there is no need for a bronze distributor gear, but your cam Find CHEVROLET 7. I would like to put a roller cam in it without conflicting with the computer. 547/. Registered User . 403 intake; 206/. There maybe some corner cutting I was thinking of doing a cam change. Anyways, it has low compression due to the #7 or #8 cam lobe being worn off but not sure which one. 4L/454 Chevy big block Mark IV Camshaft Kits Hydraulic roller, Retro-fit Cam Style and get Free Shipping on Orders Over $109 at Summit Racing! More Power in Every Purchase - Join the Summit Rewards Program Today! 5 Best Cam For Stock 454. Unfortunatly the Edlebrock TBI intake is no big deal because it can't overcome the lack of flow endemic to the Swirl Port head and very short cam timing. 7 tbi, now I want to retain the tbi but would like to put in a roller cam and roller lifters, I would like to put the largest one I can without computer mods, whats your thoughts. Oct 26, 2021 #8 Frank Enstein Best. 040 over with flat top pistons and decked to . Henderson, NV BBC Howards Cam New In Box. Posted on 1988, The intake manifold was updated to a dedicated TBI intake, rather than a 4bbl carbed intake with a TBI adaptor. Show/Hide Option 1. Along with headers and the edelbrock performer TBI intake he was boasting 240 RWHP with 2 mpg better fuel mileage. Not gonna be a lot of difference between either of those cams. It I recently picked up a second hand gen VI 454 HO for a bargain. I have heard that a 268 is the largest one. Vortec heads are fine but there is just not a lot of real hard info on them. Here's what I found on 2 different sites. They were kind of like a GM experiment until the big cathedral port 8. My buddy used one in his 94 350. It is probably an 8N block. It had headers, modified TBI, 190lph fuel pump, a bit higher fuel pressure, Comp TBI Cam and Edelbrock TBI intake, along with some retuning of the computer. That cost would be anywhere from $500t o $700! The cost comes from having to buy all the parts to make the engine roller cam compatible. 7. cam for this use is a Comp Cams part #11-412-8 grind # 266HR-12. It is very mild cam with great vacuum at idle and tons of torque. The second design TBI cam that came out in the 1994 models did improve the upper end and would improve the earlier Mark IV engines as the 156 heads that came on the Gen V engines was the smallest of the peanut port heads, the earlier peanut port heads were better. honestly, a desmog, little prom tweaking, headers/exhaust, 1. 4 liter 454 TBI. I am away from my truck for a couple more weeks but if nobody remembers this crate engine I wil post casting My dads 454 ate a lobe or two after a rebuild, but I have a suspicion after looking at the cam (not what they said it was, and not identifiable as aftermarket) I think they re-used the original cam that came in his core engine. Check out the rollers that Camcraftcams (tried to link it, but can't copy and paste anything right now)grinds. It will really liven it up and it won't cost a lot in the grand scheme of things. I am pretty happy with my tbi 454 towrig. 08 gears, Doug Thorley Tri-Y headers, true duals Email Report someotherguy Senior Moderator Posts: 29834 Loc: Texas Reg: 08-01-03. the second was on a 95 5. So nice gains for not alot of mods nor money, At crank ratings stock The TBI 454 made 230hp and 380tq I have stock tbi 350, but with hardened pushrods, 1. I'm a newbie to the Gen V motors and What I'm hoping to accomplish is specific head upgrades whether it be aftermarket or factory from a different generation, also discovered viktor reinz doesn't make the gaskets anymore to put mark IV Is there any way to add the 454 tbi unit to the factory 86 harness and have a chip burned for the factory ecm? Just a little more info, i have the complete 95 truck, was running before tear down. 47 inch the bottom of the spring retainer gets hard Were the '93 Chevy 454 engines a flat tappet cam or was it a roller cam ? Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO. 4 TBI injectors. mostly age related trouble. He's going with an LQ engine and is selling it. Small comp cam, i believe 218-224. 510, Chevy, 396-454 Part Number: CCA-K11-423-8 4. Just recently there were a few builds of a peanut port 454. I’m using The 454 throttle body with the stock 350 injectors since the 454 injectors are too much at idle. This is good. 5 degree lobe separation angle, with 52. No factory production roller cam comes close to the timing and lift of a traditional high performance aftermarket roller. This was the LO5 motor and was roller motor like the LO3 with around 205hp. Not race but a nice lope and a few more horsepower. 6 full rollers on my stock Vortec years ago and it was a nice improvement as well. I suspect it was used 600 is not out of the question without real high compression, but it will take a roller cam and 9. and its a monster. Hydraulic roller camshafts are more resilient and reliable, unlike traditional flat tappet camshafts. Vortec 454s were 290hp and 400 ft lb. 6:1 SCR. You may want to verify this and consider retrofit roller. 95 tbi 454. com FREE DELIVERY possible on eligible purchases. If all the gen 6 have roller cam can i just replace the gear on the distributor? I have a 93 GMC K1500 350 TBI. I want a cam that will give me strong low and mid range torqe that can be used with the tbi. Nothing but a big smile when you step on this one, it's exactly what we had in mind. I know I need port velocity was just curious about valve size. Summit Racing™ A bigger 600 and some CFM is used on the 454 and Holley also sells a 670 CFM unit. Ofcourse it is a factory flat tappet motor with provisions for roller cam. Find out if your block has provisions for a roller cam. The casting # of the block can be looked up online All were TBI, 91+ had the electronic controll 4l80e trans. I'm looking for What mods need to be done to install a Roller cam in a Gen IV 454 with TBI. 6 full rollers on a TBI 350 with a performer rpm intake under a 454 TBI and thorley tri-ys. Email I did a 92 454 TBI into my 79 GMC with a few of the mods listed and it pulls pretty good, better than I thought a TBI engine would. Any cam swap is going to require a tune. Orders. 73 gears (originally a 4. mmm. If you go much higher in performance you'll want the 454 TBI (hard to find), or you'll want to have your TBI bored. This engine is going into a toy, NOT a DD, and Im seeing what type of extreme budget I can stick to and have a bit more power. A roller . 24 posts · Joined 2013 Add to quote; Only show this user #1 · May 3, 2013. Who needs a Hydraulic Roller cam for 454. 5 full roller. Thread starter cool_as_crap; Start but what are the lift limitations are there with stock heads? Is this a Vortec 454 or TBI? Nov 16, 2016 #3 Christian Steffen I'm Awesome. This is the best option (and cheapest) for keeping the existing cam. 8 good idea with the zz4 cam and the tpi intake. I'm not sure this set up will fit under the hood of a stock 65 Chevelle hood becaust 09-29-09 08:20 PM - Post# 1780563 In response to Randy_W randy, you said you swapped a 454 tbi motor into a 95 chevy that had a 305? i put a 454 tbi from a 94 into my 95 that had a 350 tbi. shift + opt + c. Part #'s General Motors 3963544 TRW TM642 Sealed Power CS774 CAM TYPE Hydraulic FT NOTE CODE (050) Duration at . Brand:COMP Cams Manufacturer's Part Number:56-450-8 Part Type:Camshafts Product Line:COMP Cams Magnum Hydraulic Roller Camshafts Summit Racing Part Number:CCA-56 Buy COMP Cams 11-423-8 Xtreme Energy 224/230 Hydraulic Roller Cam for Chevrolet Big Block 396-454: Camshafts - Amazon. 530, Chevy Big Block. And the lift is unremarkable. 6 roller rockers, a stock intake ported to a 454 throttle body. They would Factory roller cam provisions, 4 bolt main, factory forged crank. Joined Jul 18, 2014 Messages 433 Reaction score 164 With TBI, the practical limit for duration is around 212 @ 0. He also doesn’t think there is any reason I should ever throw any 454 other than a vortec in it. 73 gears. 23 posts · Joined 2011 Add to quote; Only show this user #1 · Apr 10, 2012. Last one. As what i have bin told, the TBI Vortec 454 has a factory roller cam. I'm going with a roller cam upgrade. Comp Cams has a nice 212/218/112 with 0. They do make a gasket that will allow the older heads to work with your block, but it's hit and miss sometimes. I figured The "Performer RPM" cam is from the same generic series, just several sizes larger. Z. If you can switch to a roller cam, you're going to notice so much more useable torque. A HT383 tested with Ive seen a lot of folks talk about using an LT1 cam in the TBI 350, but I have a few quick easy questions. 7 Caprice, they used roller cams with TBI and TBI distributor, last year was 1993. I'd like to put a nice street cam in the engine. I built a 92 Gen V 454 TBI for a 1979 Dually I had, also pulling a 28ft enclosed trailer. 08 gears, Doug Thorley Tri-Y headers, true duals : Edited by 1983G20Van on 04-04-19 06:48 PM. Later I added 360 injectors and a SBEC computer from a 360 1 ton pickup, (1990). With the wide LSA, I have had them run very well without reprogramming Talking to Brian Harris, the main chip and tuner for TBI systems he says he can get my 350 TBI system to run the 454 if I get my throttle body bored out. It had the SM465 manual trans (no overdrive) and 3. mine has the 4l60e I don't think the '93 454 TBI engine is a Vortec motor. $25,000. I want to swap the stock cam for another hydraulic roller that will make ~500hp (6000rpm max) while maintaining enough vacuum to run power brakes and power steering. 30 getting the CR up to 9. End up drilling main jets from 74 to 78, drill idle dip tubes from 40 to 46 drill idle ports I have done a basic refresh on this Gen VI 454 and after lots of cam shopping I went with a Howards 128026-09. Show/hide shortcuts, shift, option, z . It pulled like a beast, even with 3. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ 03-12-2007, 06:03 PM #5: chrisk1500 . It's slow, 269/278 degrees seat to seat, 193/204 @ . 5 degrees of overlap and is on a 108 degree intake centerline. com board used to be a very good place to go for L19 and TBI related material. 4L TBI engines. Take advantage of it. Very impressive power with a smooth idle at about 750 to 800 RPM, massive amounts of torque, and an estimated 450-HP. 3:1 383 TBI in a 1995 GM 1/2 ton truck? The goal is peak torque around 3,000 rpm and peak HP around 4,700 rpm. Aug 28, 2004 #2 my 88 has a flat tappet, i am under the impression that all the tbi's were flat tappet, but that is just hear say, cause i don't I would do the Vortec heads (you stated you had donor) and aftermarket roller cam, use a 411 PCM (this makes is WAY easier to tune) and get it tuned. I am looking at the Lunati 20110710LK setup. You can go bigger, but it will be harder to set up and tune, and remember, the TBI is only 650 CFM or so. At the start of the lift, a flat tappet can be accelerated upward faster than Its tbi but im pretty sure its a gen 6 still. 50 cast iron heads flowing about 210 intake & 160 exhaust at 0. just bump the fuel pressure, do the ultimate TBI mods, or go to a 454 tbi unit. It works really well with either that cam or a stock F-body LT1 cam. Haven't been over there in a while but the 454ss. First upgraded the fuel pump as that’s mandatory on all decent performing TBI builds. This cam will produce the most torque between 1500-3800 rpms which is where you want it for towing. 1971 Jun 14, 2013. I eventually will need a new chip for my truck but right now I am trying to iron out a parts list. 503" lift, put that in on 108 or 109. Pre-vortec, so I don’t know if that makes a difference. lbs. User Info . Will run 1. 500". 050", even though Edelbrock sells a TBI cam that is 218/228, it's big for the TBI system to "learn". - See this for computer mods TBICHIPS Home | Harris Performance, INC - Roller tip rockers split ratio 1. Option 2. Location: Saskatchewan You guys should read the car magazines more. Call Lunati, Howards L29 454 Cam upgrade - Towing. Upgrade the oval port heads and roller cam, dual plane intake, 750-850 4 barrel, HEI distributor, headers and so on. Personally, I'd go with a new MSD unit. p/n 12361316 SS 454 Perfoormance Cam and lifter kit 210º/218º duration at 0. I could stick with the stock tbi cam (new), or something with a bit more torque/HP, but I have no Idea what to go with as far as my stock tbi computer is Comp Cams BBC Gen 4 & 5 Hydraulic Roller Camshaft Cam & Lifter Kit Hydraulic Roller - this is an incredible camshaft for your late model 454/502 Magnum EFI engine, big power going, yet still EFI compatible Duration in Degrees: Lift with 1. Edelbrock offer a`TBI frendly cam 218,228-. Moderator: Team. Figure weight of toy hauler to be around 12000 to 15000. It has to be a hydraulic roller and make a descent improvement in power, but not so much lift or duration that there is a danger of hitting the piston with the valves or requiring changes in the valve train such as rocker stud or spring changes. I I gained about 15 hp from 1. This translates to improved airflow and exhaust scavenging What would be a good hydraulic roller cam choice for a 9. any good ideas for a cam? Jan 28, 2012 #2 crazy4offroad Equal Opportunity Destroyer . The E 860 would be my pick. it made no difference at all over the tbi IMO and the owner will tell you the same thing. 8:1 on 7. If you click them and make a purchase, we may earn a small commission. ACDELCO 19052845 . 6 full rollers than its current 1. Thread starter cool_as_crap; Start date Nov 15, 2016; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. It climbed Mont Eagle, TN at 60 mph in 4th Stock 1975 454 cam specs. Solid gear to gear timeing . I’ll probably have my initial fuel pressure set around 20 psi. heads , comp cam 598/601 lift , open headers , 950 holly ( soon to be injected ) OH and a 100 shot of squeez. Shop by category 96-00 Chevy 454 7. Reactions: PlayingWithTBI. 7 Rocker Arms: Lobe Sep. I guess you should start with what the really early TBI trucks were not necessarily roller cam ready blocks (my 88 wasn't) but a 94 I would expect would be (I have a 93 K series block and it was roller ready). A flat-tappet cam is limited in how quickly it can open the valves. 7L to a roller camFollow this Link to become a supporterhttps://www. Post by 496blaze » Sat Mar 09, 2019 4:15 pm. Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Advertised Duration 283/303, Lift . I am putting together my 454 with this mild hydraulic roller cam and my stock 049 heads I dont know what valve springs to TBI 454 help. before you do any fuel system changeouts check on the emission standards your state has. A near stock type roller cam with a more aggressive ramp may allow those swirl heads to breath a bit deeper at low RPM and produce more torque. You could put a set of 1. Shop with confidence. Hedman Headers into 3" Dynomax exhaust. BUILD IT WITH SUMMIT! Filter my search results to see It is part of the HT502 TBI truck conversion package for 454 TBI equiped trucks. 415 exhaust; LSA 115 - 12551705 350 LT1 93-95 roller 201/. Upgraded Vortec cylinder heads, a more aggressive camshaft, and reprogramming TBI chip to make 300 horsepower or more with a GM Chevy 305, 350, and 454 engine with factory TBI injection. 475/. This was a big block engine but its throttle body can be implemented onto your small block set-up. Find CHEVROLET 7. It has very similar specs to the LT1 roller cam. Man. 050 Lobe Lift question on valve springs for 454. 1 came along. Tbi will not accept narrow lobe center. Edelbrock parts will fit. My question is: what should I look for in a performance camshaft and lifters for when I go I have a 1976 tbi 454. If it isn't rated and compatible the Smog System Tech The cam snouts are totally different since the LT1 drives both the distributor and water pump off the FRONT of the cam. Compression ratio and cam remained unchanged. Joined Jan 29, 2015 Posts 10,041 Reaction score I am rebuilding a 1994 K1500 5. 11. I bought a 1975 454 and I'm wondering what the stock cam was/is for that year, all help is greatly appreciated . I'm going to use a cam with . Start truck break in cam at 2500 RPM for 30 minutes and tackle carb. A good towing spec. Join Date: Oct 2016. 7 TBI without causing bad driveabilty problems. I'm going to replace the engine very soon. Isuzu specialties . 9. it also recieved a roller cam/lifters and a set of vortec heads. 015 with the valves opened up to 2. Thanks, Charlie Find CHEVROLET 7. I did own one. $129,980. Use your tbi headsyou also need the pushrods. E-trans shift points will be set to 5,000 rpm WOT. My 1970 SS454 LS6 SuperCar certified stock appearing 11. Don't bother paying more for double platinum or iridium on a TBI. theirongame (24,198) 97. 5:1 427 / Edelbrock 100cc oval ports. its a 454 TBI I was also thinking od gutting the cat and adding a flow master . Music to the ears. and a GM ram jet fuel injection. Quick question. and i know the small blocks went to roller hydraulic lifters about 396 427 454 502 erson roller cam. We have used that cam quite a bit to upgrade L05's when converting them to roller setups. That cam is on a 110. Jump to Latest My 454 has 12 to 1 trw pop ups I'm needing hydrolic cam lifter roller rockers and a decent se of heads . Even if you fell short of 500hp, it would still be fun to drive. 45 and . 4L/454 Lifters Hydraulic roller Lifter Style and get Free Shipping on Orders Over $109 at Summit Racing! More Power in Every Purchase - Join the Summit Rewards Program Today! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search 454 Gen 6 Cam. Edelbrock TBI intake and modified trottle body, chip etc. The 2bbl TB EFI system remained. Being a roller & having more lift, the LT1 cam would make a little more power under the curve, but, not alot on a cam this small. There are a lot of incorrect assumptions out there as to what's going on. 480/. $1,350. Runs great. of your distributor. Found this on another site: TBI 454 255hp @ 4000rpm 405 lb/ft torque @ 2400 rpm 454SS(91-93) and 94-95 3/4 and 1 ton trucks used 90 lb/hr injectors at 28-32 psi (high pressure system) Vortec L29 454 290 hp 410 lb/ft torque . Comp Cams 54-459-11 Hydraulic Roller Cam. 88 valves, custom cam, eddie intake oversized two barrel tb, with headers in a 90's tahoe. 050" In. With better heads, intake and a 4-port TBI system the stock 454's can make @450HP pretty easy with a mild cam. $5 off $49 / $15 off $249 / $30 off $499 / $65 off $999* - Use Promo Code: 2025. Maybe an adjustable pressure regulator? Maybe an Edelbrock TBI intake manifold? I need to pass emission one of the installs was on a stock 92 5. Last time he checked he got about 11 MPG and his Blazer probably 1990 TBI 454 Runs Too Rich Engine & Drivetrain Register or Log In To remove these Vortec heads & roller cam someday 05 Jeep Wrangler Unlimited. zach69elcamino Discussion starter. 94/1. Although there's still TBI tuning to deal with if you don't swap to a carb. 431 / . Brand New. I'm going to order the a lunati hydraulic roller cam and spring kit this week. my buddy put 2 hot a cam in his and the computers stock programed parrameters cant figure out why the thing wont read much of anything with the map sensor. But, the factory roller cam doesn't have a fuel pump pushrod lobe. Ex. The result Post: TBI 454 K1300 cam without tune (Topic#334399) fl_tags Forum Newbie Posts: 4 Reg: 12-30-15. I am freshening a bone stock 350 TBI that will go in my daughters 1990 Blazer. Jump to Latest 18K views 15 replies 11 participants last post by Boo. Free Shipping; This product may not be eligible for select promotional offers. $350. BUT after checking on what it would cost me to do that is going to push my budget way beyond what I have available. The goal was 200hp/300tq at the rear wheels and 20mpg- all on 87 octane fuel! The engine package is very basic- just a good combination of parts that work well together: Friend of mine has a '79 Blazer that he just converted the 454 he put in a while ago over to FI with the multi point and all necessary GM parts along with a roller cam retro fit kit. zixoquhkwlzrlzadbofbgyaephifkpcleuksdnovhxxvv