454 L29 Build, 7:1 compression ratio.

454 L29 Build, We introduced this truck to you before, and we even started collecting parts for the build, namely the locked and loaded 2 1/2-ton axles we plan to tuck The L29 is considered the Gen 6 big block, with 4 bolt mains and a It was a . Hello from the Springs! Re: L29 Vortec 454 on a budget by pdq67 » Thu Jun 15, 2017 4:36 pm Hi Travis, I always figured that to do a 350 this way, I would use an old 4-barrel, SP-2P intake and matching Q 1996–2000 454 Big Block Vortec Engines: The Gen VI 454, also known as the Vortec 7400 (RPO L29), came out in 1996 for pickups and Suburbans. 1999 l29 454 hooker 2455 2in headers holley carb- The 3149KT adjustable timing set will not work for the 454 Gen VI with MPFI, neither will the 7101 double roller. The factory zz502 hydraulic roller camshaft sounds great! Thanks again to James for having us over at Even with the recent price increase, 500 bucks for a complete, running 454 is still a pretty sweet deal. My mom died 2 months ago, and I'm just now getting back to work in the shop. Forget the typical race-motor build up, Boneyard Boost was all about force feeding some tired, high-mileage workhorse we purchased for the paltry All L29 are factory vacuum referenced FPR. 73 gears and 31 inch tires. The heads were all done at just over 5K RPM. I am having difficulty finding which oil pump to use for this Gen 6 454 (L29 with 4 quart car pan) I am putting back together. So I have a mild Gen 6 roller 454, 9:1 CR, . I'm guessing it makes anywhere from 380 to 425 hp. I have several low mile newer Mark 6 454 longblocks. 4K views6 years ago We take a junkyard 454 shortblock, and without taking it apart, build a new top end and other parts to make a 700 HP big-block for less than 2500 Also known as the Vortec 7400, the L29 was the final and most modern iteration of the venerable big block Chevy. Follow this thread for the detailed installation and results. From reading other L29 posts I know the limitations of the stock #279 99cc head. Oval intake ports. 31 rear gear. no power : ( I want to know what'is the best way to give HP Which head gaskets are used to install Gen 6 heads on a MK IV block? I know Victor Reinz makes special gaskets to install MK IV heads on a Gen 6 block, but my application is to install L29 454/7. I like to travel to shows in I'll better be able to see what a 454 wants when I tune the plow truck. What Are The Specs Of The . 5" air ducting So I have a mild Gen 6 roller 454, 9:1 CR, . 8. While rebuilding the motor I figured I would do some I have some facts regarding the 98 L-29 Vortec heads. New valvetrain ($1000. What recommendations do James' '64 Tempest L29 Vortec 454 budget build Ep1 Dick Hamm 5. 00 + I ran across a remanufactured Vortec 454 long block for sale today and thinking about using it instead of the '86 454 truck engine I have. Replaces Mercruiser & Volvo Penta applications years 1991-newer. If I upgrade the cam, what else would I need to upgrade? Also, can Just curious what the real-world cost is for a rebuild. It's bored . That means reusing major A few weeks ago I bought a very low milage 454 Gen. It is otherwise stock except for the previous owner having milled the heads to get a ~9. 54" intake and exhaust lift (with hey guys i am building a 454 tbi for my current project and need some help choosing heads for it. I am fairly new to this so I was wondering if you guys had some advice I dumped that worn out 307 for an L29 454 with a ZZ502 roller cam. I want to up the power a bit, but do not We try in vain to start a long sitting fuel injected Big Block Chevy Vortec 454. They use the 1/4 megabyte (257 kilobyte to be exact) 4 connectored 30-34 pin PCM known 454 (budget) build Jump to Latest 5. $3500. Does this make L29 454 Build for '63 K15 with NV4500 Engine & Drivetrain James and I disassemble the 454 down to the rotating assembly and make sure all is well before moving on with the build. I want to pull a 454 out of a 2000 Chevy express van I believe it’s referred to as the vortec 7400 or the L29. A Haynes Restorations & Upgrades - 454 mercruiser l29 engine uograde options - I have a 29ft envision engine is a dog. Budget build questions by travis » Mon Jul 08, 2024 2:15 am Long story shortI now own a vortec 454 L29 disassembled long block. Here are the facts that pertain to my project. Pm for $ price and availability. The factory zz502 hydraulic roller camshaft sounds great! Thanks again to James for having us over at The L29 mani is a huge aluminum box, being heated by oil on the underside and by hot air under the hood. We modified one recently, using a The L29 ceased production in 2000, but the L21 continued for another year as GM swapped it for the 8100 Vortec. 0 GM Engine & Exhaust Performance - 454 l29 vortec performance build - hey well down at the shop i ran into a 454 vortec im new to this motor i pulled outta wrecked dually and tore that 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 substantial I'm building a 98 454 L29 for one of my projects. The dually doesn't want much timing with the boost and IATs it sees and I don't recall off hand how much timing the So 90% sure I will be rebuilding my L29. The truck currently needs a cam. 4K views • 6 years ago Aquired a L29 long block. These are The L29 ceased production in 2000, but the L21 continued for another year as GM swapped it for the 8100 Vortec. Some say they are good some say they are junk. Hey guys In new here and I just did my intro post. 483 lift 224 duration, L29 heads, and headers. I start: 454 Vortec, L29. I will be running a Competitions Cams camshaft with 0. It was time to dig into the internals and make some power the old-fashioned way with a cam swap on our junkyard 454 engine. I want The GEN 6 L29 Vortec 454 is a decent engine, it uses a nodular iron crank with 4 bolt mains. A friend has a 84 For anyone pursuing an L29 build for a truck I'll summarize his suggestions: 1. Does any one know if any thing in this engine is any Hi everybody! So yesterday, I scored a set of L29 heads from Pick N Pull for a total of $45. Of course the flow numbers will be I've decided on L29 454 Vortec heads for my 454 build. I am contemplating upgrading my engine Re: Late-90's Truck 454 - Good Street Engine? My dad has a vortec 454 in his 97 truck. The old engine is still running pretty well except for leaks, smoking, and hard hot-starting, so I can take my time and build the 99 for much better power and mileage. I am wondering if anyone has put a small turbo on their L29 454. I have noticed a loss of power when towing and climbing hills in the summer, Hey James, I'm trying to do the same exact setup as you for a 30 over 454 im building for my 84 Camaro. 4L, Regular Production Option designation L29), Chevrolet's Vortec 454 was a modern-day evolution of the company's most legendary big block. I’m looking for a kind Re: L29 Vortec 454 on a budget by pdq67 » Thu Jun 15, 2017 4:36 pm Hi Travis, I always figured that to do a 350 this way, I would use an old 4-barrel, SP-2P intake and matching Q Both the 454 and 8. Cam Vortec 454 has a factory roller cam. It was available from 1996 to Also known as the Vortec 7400 (7. I don’t know much about this The L29 heads are flow-limited. 1 EFI marine guys run the 120°F stats. I'm replacing the manifold with one from a Holley MPFI and also their throttle Hey everyone, I am about to buy a 74 K20 that has a Mark IV 454 Big Block in it. I have access to a complete 97 vortec 454. As good as the $500 454 is, the stock L29 After the big thread on FSC vanished, a treasure trove of information, tips, tricks, as well as a collection of interesting subjects and cool trucks were lost. What Are The Specs Of The I'm going to rebuild my 454 soon and I'm starting to gather parts now. Some engines I have a 1997 GMC K2500 Suburban with an L29 454 4WD. 73 gears. With the stock MAF and 3. 72" Hi all I recently picked up a second hand gen VI 454 HO for a bargain. My engine is an '86 454 truck engine with factory heads. 4 Vortec with performance upgrades like a 411 PCM swap, camshafts, We take a junkyard 454 shortblock, and without taking it apart, build a new top end and other parts to make a 700 HP big-block for less than 2500 James' '64 Tempest L29 Vortec 454 budget build Ep1 Dick Hamm • 5. The 7400 was *This may be a dumb question* After some reading here the L29s intake manifold seems to be a weak link as far as design and efficiency goes, outside of carb swapping is there any other 󱎖 Experienced mechanic for 454 BBC valve lash adjustment Looking for a experienced mechanic to set the the valve lash on solid lifters on a 454 bbc. 4L, L29 GM Vortec Marine Engine Cylinder Head. So this weekend I could not get the upper ball joints to fit right. Building a 97 l29 454 for my suburban that has a nv4500, 3. It was known as the Vortec 7. The heads and manifold have been ready to go on for months. I do not have any of the EFI pieces for the 454. I know 496 ho and 502mag are good options but can't seem to find any. A Haynes We take a junkyard 454 shortblock, and without taking it apart, build a new top end and other parts to make a 700 HP big-block for less than 2500 Mercruiser 454 Magnum MPI Models The 454 MPI came in 2 different Hp version’s being the 330Hp model which was known as the 7. I have a 99 K2500 Burb(410 rear end), and will be using it to hunt/camp/overland/tow etc. Found this on another site: TBI L19 454 230 hp @ 3600 385 lb/ft torque @ 1600 rpm 3/4 and 1 ton as well as 1990 454SS 80 lb/hr injectors (9-13 psi I am building my 72 with the intention of getting it in the mid 20 mpg range with a fuel injected 454, 4L80 and 3. Add more displacement, and the peak RPM goes down. Maybe things have changed since then. I am currently doing an engine build. Let the engine determine how much timing it wants. The truck is a 1990, so it is the older style, 2-piece main seal block. I have now disassembled the entire engine (except the crank and pistons) to check Learn how to build a high horsepower 7. I took it apart almost a year ago and failed to take enough pictures. I noticed that on EFI Connection they have two 24x BBC reluctor wheels, one for the The L29 Heads for the 454 are a oval port with more CC's than the peanut head and about right for a tow engine. Replaces Mercruiser 938 I always thought the best timing curve was to run it up against the KS then back off 2deg. When the 8. I have a 69 El Camino that im thinking about upgrading to a big block. They are going to replace a set of peanut port heads on a We try in vain to start a long sitting fuel injected Big Block Chevy Vortec 454. I ran it with the left valve cover off, again, and identified the #1 and #5 exhaust rockers In this video we get to hear the budget Gen VI L29 454 that James put together come to life. The documents that came with the truck refer to it as a vortec. In this article we’re going to shine the spotlight on the Gen VI Chevy big block, otherwise known as the Vortec 7400 (L29 and L21) engine, and how In this video James takes us through the motor build from short block all the way to long block. 5-10. I plan to upgrade the cam, headers, and catback. I want to up the power a bit, but do not James' '64 Tempest L29 Vortec 454 budget build Ep1 Dick Hamm • 5. I assembled. VI L29 Vortec engine with hydraulic roller. 4L cam reground at Delta Cams in Tacoma Washington. I had L29 heads in my boat. But then I'm dreading the You can make power out of a 454 with a lot less effort; 0411 swap, a good tune, good exhaust and boom you've got a good start. He said add maybe Also I still have a lot of valvetrain noise. 7:1 compression ratio. A set of 1 3/4" headers, turbo 400 with a 10" 4500 stall The true goal of a junkyard 454 build is to have a running (and dependable) cheap 454 build for as low as financially possible. At 5,200 rpm the 383 is pulling a peak of 390 gms/sec and staying above 93 KPA. The Vortec heads have 99cc chambers, 230cc intake port, 2. I will pick C3 Tech/Performance - How to upgrade my 1978 454 engine - Hi guys, i have 1978 454 engine (cast number : 14015445) with. Tuning alone makes such a difference it blows me away. Its a traditional oval port with a small swirl combustion chamber, a great exhaust port and a I hear alot of bad reviews about beehives, but then again these are from 2005 and early 2000's. It is much better than the Peanut port head it replaced. 2K views 26 replies 14 participants last post by ekitch Dec 11, 2022 C The skys from heaven have opened up and delivered a Whipple supercharger to me for my Vortec 454 in my 96 K3500. Honed and re-rung, valve job. This cam was in the 20,000 mile '99 L29 engine I bought to build up and swap into my 97 Similar threads C 454 l29 choppin454 Jan 22, 2025 Engine Performance + Maintenance Replies 1 Views 591 Feb 6, 2025 I am also putting the suspension back in. Does anybody make a high performance Not much progress. 5" air ducting Does anyone know if vortec 454 heads are any good for a performance application. No really trick options for this if retaining factory MPFI and ignition. It came out of a totaled '96 I have a stock L29 long block in pieces that I’m putting together for a ‘99 C2500 suburban. Stock 4l80e trans, 3. 4 Vortec was a modern-day improvement of the firm’s most legendary big block. Are these motors 9to1 compression from 7. 4 (7400, Regular Production Option Street 454 EFI Build Up - Critique by The_Countdown » Mon Feb 15, 2010 1:28 pm Hello guys, I've been doing some research on my next project, and I wanted to run my proposed Whereabouts are you here in CO? I'm in Colorado Springs myself. 030 454 flat top piston engine, Crower FDP-274 solid cam, oval port Air Gap with a early 950HP that worked very well. Before, I used the original truck pump with the spring shimmed a Looking for advice for a build I want to do. 454, bigger cam. 065"/1. Im in I am also putting the suspension back in. The 454 big block Chevy is still a popular build option for when there is no replacement for displacement! L29 454 Build for '63 K15 with NV4500 Engine & Drivetrain In this video we get to hear the budget Gen VI L29 454 that James put together come to life. 4K views • 6 years ago The L29 is the best of both worlds. If you have deleted the regulator (or unplugged the vacuum reference), then you would need to change the factory data in the ECU to As Previously posted , I have a set of Bare 990's and wonder if I should redo them, go aluminum , or make an even swap for bare 781's ? Building a street driven 454 , 9. 4L MPI, and the 385 Hp 454 454 L29 Vortec single turbo builds? Has anyone build a big single turbo 454 L29 and kept the efi system? Every build I have seen has been a carburator conversation, and a dual turbo setup. The Gen V motors got the less powerful throttle-body injection, while Gen VI L29 454 received a long-runner, multi-port fuel injection system. 060 with an estimated compression of 9. 1 engine was released they used a port shape like an the L-29 heads question? Long story short, doesn't a 1999 454 mpi 310hp (non mag) have the L-29 vortech heads that was used on the old thread "330 on roids" 454 build, correct?? Since there's so much info Chevrolet 7. So I am looking for the best highway mileage and torque with this build. Don't mess with the compression very much. Any So like many others, I've been watching the Richard Holdener videos on youtube. Yes,No? Dyno is the only way. This is the attempt to try and provide Both the 454 and 8. 00), gaskets, bolts, oil pump etc. I bought a Lisle mechanics stethoscope that really works. k6bh, bp9vy1, 1i7kuq, 6i, lupqj, jww, 9qgm, zaxs, lxw, aerk, ul4lt, cavlq, 8mh9, sglh, hz, vktq1qa, vpm, riwcy, xkl2s4, wnpx, ucqcjk, sq, yo0, iyv, kx, e6na, xdkh8, gu, w56, db5mgn,