454 L29 Vortec Engine Performance | Team Chevelle Purchase a Chevy 454 crate engine online from JEGS High Performance. Thank you for any information you could give me. Can I tune it myself later with my own tuner or is it still a black box like the oem? If you are placing an order to ship outside the United States, Shipping Insurancewill be required and added automatically at checkout. Mostly people saying to try this and try that. Whether the kit is intended for stock replacement or racing, various levels of compression will allow for improved performance with emphasis on top-end power and high RPM.
The Official Vortec 454 Info thread - GMT400 No where near diesel power my ass. way stronger than a stock 12v, 6.5, & 7.3 powerstroke by far!!!! I have a 2000 OBS Chevy quad cab with a 454 Vortec. Wiring is the same. I am considering your tune for my motorhome. Best, least expensive way to get more power out of this engine is with our custom tune. Using 3.5-inch aluminum tubing from CXRacing, we configured the intercooler between the YSI supercharger and the blow-through carburetor bonnet. Engine Hotrodders' Lounge Body - Exterior Transmission - Rearend . If I order a ecm reprogram will this fix my speedometer error too?? Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. CAN YOU REALLY MAKE DECENT POWER WITH A SET OF PEANUT PORT BBC HEADS?. Our tuning is based off of extensive dyno testing of RV's, and while results may vary, our gains are generally higher than others due to our expertise in the tuning of the L29 7.4L. Choose FORTEC 4x4 for Jeep Wrangler JL and Jeep Gladiator JT Customizing - Highly trained Specialists Since 1991 Each Jeep we touch brings you the greatest quality, functionality and performance We offer Jeep Turn Key Solutions, Jeep Parts and Jeep Accessories in Partnership with Jeep Dealerships in Atlanta and Florida Pace Performance Products in Ohio put together a decent upgrade. I have a 2000 OBS Chevy quad cab with a 454 Vortec. vortechsuperchargers.com. Truth be told, Vortech offered a number of Maxflow Aftercooler systems but we selected an intercooler core we had on hand for testing. Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score This is a crew cab, 8 foot bed. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. Also I have Thorley tri Y hearers on mine will that effect the tune? Yes, we can tune your L21 for similar gains as with the L29. Edelbrock 7162 Performer 454 Cam kit can produce 540 horsepower and 530 ft-lbs torque power on a 454 engine. We can adjust for speedometer error. Makes NO permanent changes to your vehicle's computer! Painless Performance 60211 Standard Length MPFI Harness for 1996-2000 GM Vortec 7.4L V8, Innovative Performance Chip/Power Programmer, Big Autoparts Ignition Distributor Set DR474 DR331, ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set, Painless fuel injection wiring utilizes all new TXL wire, OEM fitment connectors and grouped harness breakouts making for an easy install and saving you from using old re-worked wiring; Machine crimped terminals match OE quality. Warmed up at idle the gauge is reading 1200RPM then put it into drive holding the brake and its reading about 1000RPM. There should be no reason to ever need to reprogrammed in the future and if you needed a replacement PCM we can take care of that for you. For this test, the motor was configured with an Edelbrock RPM Air Gap intake and Holley 750 carburetor. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. Truck runs great doesnt miss or anything just seems to not really have any power at all in 1st gear and alittle more in second gear.
Chevy 8.1 Vortec Ultimate Engine Guide - Specs, Performance, Problems The K&N raises the horsepower of your 5.7 Vortec crate engine by 45 percent. as much as possible im going to do a cam exhaust and injectors and intake so my questions are what do you think my gain would be with your pcm and can it be piggy backed with a plug in tuner thanks matt, would i be able to get a retune if i add a cam after, and what is the turn around time, thanks. Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? It was not a good moment to debut a big cubic-inch big block designed for performance vehicles, but the Chevy 7.4 made an impact nonetheless. Though larger than the previous 7.4L models, the unique 8.1L could not utilize the amazing array of performance parts available for the previous three conventional big-block models. Typical gains are 40-45 horsepower and 45-50 lb-ft torque, 4. Can you guys tune that ecm? I think I am going to swap on a good set of aftermarket heads and change out to an Edelbrock Pro Flo EFI. Does this upgrade have a negative or positive impact on engine life? This project will also let customers know if spendintg approx $2300 on all these upgrades is going to give them the results they need from their big block engines. I plan on a couple of cross country trips this summer before the Banks PPB install, so, should I wait for the tune until after the Banks install or do the tune this year? Your vehicle is not compatible. We also took the liberty of installing a Race-Port blow-off valve from Turbo Smart. Since the cat removal shift points have been wonky. UltraPower 7.4L ECM Benefits: Gains of 40-45 HP and 45-50 lb-ft torque depending on existing upgrades Gains of 1/2 - 1 MPG Maintains speed and higher gears when climbing hills It is not 4x4. This camshaft provides more lift and longer duration using the 10-12 Manifold vacuum. 7.3 is 250-275/505-525 stock. Performance computer re-calibration and a Custom High flow Billet Flame Arrestor that increases the maximum power by more than 25 HP* and 30 pounds of torque*. cam with matching torque converter and headers would be easy. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. The 7400 was essentially the same big block 454 that powered Chevy through the muscle car years, but with improved cylinder heads and a hydraulic roller camshaft, it was far more efficient than the old LS6 could ever hope to be. The L29 454 was originally rated at 290 hp and 440 lb-ft of torque thanks to a combination of fuel injection, large oval-port heads (to replace the peanut ports used in the previous Gen V motors) and a slightly higher static compression ratio. I want to install a cam while you have the ECU. So, what are the most common problems with the Chevy 454 Vortec? The tune will definitely wake the truck up. It would be a good idea to re-tune for the Banks and injection systems. Although Chevrolet does not explicitly recommend it, because a full synthetic is so slippery, you can use a lighter weight oil without risk of excessive engine wear.
Boneyard Boost: Vortech 454 - Street Muscle The 7.4 Vortec was essentially the same big block 454 that Chevrolet used to power its muscle cars, but it gained a hydraulic roller camshaft and improved cylinder heads to make it considerably more efficient than the old LS6 could ever hope for. What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? m) at 3200 rpm. To find out just how much the 30-year-old behemoth could muster, they took it to Westech Performances dyno room. Not only did the cam swap net an additional 52 horsepower (peak-to-peak), but the gains exceeded 80 hp higher in the rev range.
Need advice: 454 VI L29 Build | Hot Rod Forum youll have to stick to a torque cam because of the computor needs vacuum (speed density) headers will help greatly. Oil collects on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons), reducing horsepower through parasitic drag. If you can supply me with your VIN and any part #'s that are on the ECM I can do some research.
Common Problems with Chevy 454 Vortec (Explained!) Next best upgrade you can make is the Banks TorqueTube headers (, We recommend these injectors:https://www.fiveomotorsport.com/bosch-oem-454-j-code-884-black-knight/. The guys over at Hot Rod magazine wanted to prove its possible to make big horsepower from a Chevrolet big-block V-8 lifted from a junk1986 motorhome. Only a set of dyno headers and an electric water pump were different.
How to Make a Chevy 454 Vortec More Efficient | It Still Runs $399.99. I borrowed a friends TBI 454 dually to pull my blazer one time and it impressed the **** outta me.
Chevy Engine Kit - Chevy Stroker Kit, 454 Big Block, 454, 496 - Coast High After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. Bosch p/n: 0280155884. This is a lie. Can you reprogram and net me the same HP & TQ numbers as the L29? Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. Rowe studied engineering, philosophy and American literature at Central Florida Community College. We can also adjust your speedometer to be correct. This thing is weak as water. Body Diameter: 16 mm. My car is GMC pick-up 7.4L 1998. it is manual transmission. Most ordersare shippedwithin 24 hours from the order date. the Vortec 7400 (454) that came in that suburban is one hell of an engine, there are also many things you can do to get more mileage and power out of it.
Chevy 454 Engine Guide - 7.4L V8 Specs, Problems, Performance I have a 2000 gmc k2500 with the l29 454. a good set of headers help to. The Vortec 8100 was built off of the GM 454 engine platform, also known as the 7.4 Vortec. I THINK I want a diesel until I look at the prices. There was plenty of power left in the YSI, but at 847 hp we couldnt help but be amazed at the extra strength GM put into the design of their 290-hp big block. 2023 Power Automedia. Yes, we can resolve your issues. Distributors cap and rotor kit features brass inserts and stainless steel rotor springs,designed to provide the best possible fit to ensure maximum conductivity between the distributor towers and spark plug wires,prevents arc through and crossfire. Yes, all gains listed are with 87 octane gas. If you choose the core option we will program an ECM here and ship to you. Im doing a full build on the motor Ive been told that these injections systems dont do well with these kind of upgrades. We immediately checked the latest 8.1L off the list due to lack of availability and parts cross over. Then, in 2001, GM dropped the 7400 and 454 combination in favor of the final powerful big block, the 8100 496-cubic inch engine with 340 horsepower at 4,200 rpm and 455 foot-pounds of torque at 3,200 rpm. . 1996 c3500 dually 7.4 with 5 speed. You can definitely hold on to your PCM, that is not an issue. It can be done fairly cheap , power for days and 15-20mpg, I repeat. Seems like it's lacking power towing my boat. Also, is shipping included both ways? As long as the engine is well maintained, reliability is not affected. I have now disassembled the entire engine (except the crank and pistons) to check that everything looks good, remove all the dirt and grease and to prepare it for a rebuild. My tech who does the programming is out of town this week so it would get done first thing next week if you wanted to go ahead with it. Whether your power boat is running boost or naturally aspirated, we have the correct performance parts for your application. The stock injectors are fine for our performance tuning. You can source the 454 HO directly from Chevrolet. The 8th digit of your VIN is the letter "D" which designates your engine as a 7.4L LP4 which is different from a normal L29 7.4L. Can I reprogram on the fly as conditions change and performance needs warrant a change?? Right now I have a CAI, 2" full length headers, 3" dual exhaust and EGR delete. TQ with those modifications done. Switched to Mass-Air Flow. I've made several performance upgrades myself, but are always looking for something better. Our kits include camshaft, lifters, piston rings, pistons, both rod and main bearings, cam bearings, timing components, oil pump, frost plugs and gasket set, with an option to purchase a crankshaft as well. We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ.
BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM - ebay.com 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: Configured with our pulley combination, the YSI spit out a peak boost pressure of 19.1 psi where the boosted big block produced 791 hp and 713 lb-ft of torque. This 1-ton dually truck is used for hauling a large slide in camper and atv trailer. UltraPower 7.4L ECM Benefits: Gains of 40-45 HP and 45-50 lb-ft torque depending on existing upgrades Gains of 1/2 - 1 MPG Maintains speed and higher gears when climbing hills Im also trying to get more out of this engine without tearing into it so I was just hoping this fixed my gauge as well. The single core from CXRacing featured 3.5-inch inlet and outlets and had been tested previously at over 1200 hp and 25 psi. We've had a lot of issues with 1996 & 1997 PCM's so for the moment we are not tuning those. You may also like. I plan on the injector and ignition work done in march. I have a uhaul topkick with the 7.4. Mfg Performance Parts www.straubtechnologies.com www.distributorgears.com I'm sorry, we can't tune anything prior to 1996 model year. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Normally, advancing the distributor would increase octane sensitivity and possibly fuel economy, but the upgraded ignition system will allow you to do so without adversely affecting fuel burn or horsepower. Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. The budget portion of the equation came from a 7.4L Gen VI big-block Chevy straight out of the local wrecking yard. If you continue to use this site we will assume that you are happy with it. This is a stock style setup, featuring a 4.000" stroke and bore sizes ranging from 4.250" (standard) to 4.375". Change to a synthetic oil that is light-weight. from your CUSTOM TUNING,ECM, J'ai l'intention d'amliorer l'ordinateur de mon VR, par un model ULTRAPOWER mais avant d'acheter, j'ai besoin de savoir quels fuel injecteurs seront le mieux adapts ( conomie et rendement ) avec le nouveau module? We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. Project Boneyard Boost was one of those rare occasions where we got to apply a massive infusion of power to a motor that cost next to nothing. After selecting a motor, we set about making the necessary changes for our test. Is the pcm that is used a 411? Thank you. Buy your ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set at Amazon. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Thanks.
1996 K3500 454 (7.4L) | Off Roading Forums However, Chevy still offers the 454 big block V8 as a crate engine.
GM 7.4 Vortec Ultimate Engine Guide - Specs, Problems, Performance You might also want to consider a high voltage coil, high performance 8 mm spark plug wires and a set of quality aftermarket spark plugs to help your engine ignite more of the fuel that goes through it. They seem to be similar to those used in your RV work. It will not void your factory warranty, and does not modify any emissions systems. Thanks. We would recommend speaking directly with a camshaft manufacturer to determine the best for your particular engine. It won't hurt anything to run like that. It is located on top of the radiator support and has 4 connectors going into the back of it.
454 MK VI (vortec) | NastyZ28.com 7.4 Vortec Performance Upgrades - BOOST YOUR ENGINE We are currently out of clean/painted cases for the PCM's. Dont buy a camshaft because someone claims its fantastic; instead, purchase one because you know it will fit your vehicle and give you the performance look you desire. These modifications will improve net mileage without sacrificing power, resulting in better overall mpg. As you can tell, it doesn't deliver much. The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. So, I am contemplating upgrading this thing for more power, or selling and buying a Dmax. A restrictive or clogged air filter makes the engine work harder to breathe, which reduces efficiency. Thanks to a maximum impeller speed of 65,000 rpm (racers go even higher) and a peak efficiency rating of 78%, the Vortech YSI was capable of supporting over 1,200 hp at 30 psi. It was the same size as the outgoing 7.4 L V8, but got a boost in power and more towing capacity. If so, is that the unit that sits above the radiator of a 2000 Itasca Suncruiser V32 w/ L29 7.4l (454ci) Vortec? You can pretty easily get 400+ horses out of that thing and it be streetable. I have a GMC PCM service # 16238212 for a 99 Topkick w/7.4L 454 gas engine; and was wondering if you are able to repair these PCMs/ECMs or have an equivalent I can replace it with?
UltraPower GM / Workhorse 7.4L (454) Custom Tuning - Brazel's RV It may or may not have a decal on the ECM depending on if they did a mail order tune or came in to our shop. At this point the engine run well, with no code problems. This engine series was utilized on Chevrolet and GMC large truck models such as the Suburban from 1996 through 2001. I've always heard that they were a good upgrade to the TBI 454 and earlier 454 heads. Check for Availability: $349.95. Are the tunes generic or do you change different things for different people? It is quite a noticeable difference! I'm saving up for the banks power pack system. 90 and older is particularly bad and that is largely due to NO OVERDRIVE. Also the torque management. Is it possible to upgrade the ECM on my 1994 Fleetwood Southwind Storm 454 TBI w/4L80E trans? Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidaysareprocessed on thenext business day. Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. We use cookies to ensure that we give you the best experience on our website. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. Jump to Latest Follow . The heads used on the L29 combined the large oval intake ports with small (100 cc) combustion chambers to produce a slightly higher (than the Gen V) 9.0:1 compression. Do you have any videos of how to locate and remove my ECM? I don't drive the truck daily so could send my ECM to you for tuning My question is would this eliminate the SES light for the cats P0430/20 and air pump ?? Also how much benefit do you think I would gain by going aftermarket catback exhaust. Always a big complaint with 454 TBI trucks. He eventually figured it out. Return shipping is included , you are responsible for shipping to us , however if you choose the "core charge" and order the ECM , we can provide a return shipping label for your core and deduct from the core refund.
Parts overview- James L29 Vortec 454 build Ep2 - YouTube If you can find this PCM in a salvage yard or from a different type of vehicle that uses the same, we can likely program it to your vehicle for you. All fuel injector specifications meet or exceed the manufacturer's specification standard.
Top 4 Best Cam For Stock 454 Big Block Review - Tools BIble You can either pay $100 for the core and then be refunded when we receive back yours or you can send in your ECM for reprogram. With the 454, putting in Vortec 350 code and chaning the displacement and enter in the tables/constants/switches appropriate to the 454 is all that is needed. The previous owner had the engine rebuilt in 2012 and tells me they installed an RV cam but I am not sure which one. I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. All rights reserved. Very interested in this. Chevrolet Performance's 454 HO crate engine is a Big-Block bargain - an affordable engine with performance specs that will make you think it's 1970 all over again. 454 L29 Power Upgrade. Would the retuned ECM provide any performance gains above what are present now?
Vortec 8100 8.1L Chevy GM Performance Parts - GEN 7 Big Block - 496MAG I have had a hard time finding much of anything for these engines.
CHEVROLET 7.4L/454 Parts and Accessories - Summit Racing Equipment I have a vortec454 in a non smog az tow vehicle. If I send in a functional pcm for my Suburban mentioned in last question whats the average turn around for it? Despite the impressive cooling powers of the carburetor, we were still concerned about the elevated charge temps going into the carburetor.
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