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. . Would we still get the good price when you get more control modules in stock? The old, weak 240 HP 454 is every bit as. To allow the motor to rev cleanly to 6,000 rpm under boost, the cam upgrade was teamed with a new set of beehive valve springs. Alright Jay! We can even modify these Chevy 454 rebuild kits to your specifications, giving your vehicle exactly what it needs for maximum performance. BBK Power Plus 80 millimeter Throttle Body for GM Vortech 305/350/454 for all BBK 1996-1999 GM Vortec 305, 350, 454 throttle bodies are designed to increase airflow and improve horsepower from between 7-12 HP depending on the vehicle and . WARNING: Products may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. 1999 Crew cab dually, 454 vortec, AUTOMATIC. See listing details. What type of gains could I expect with a tune for this? Would this work on 1996 7.4L L29? That model of 454 is alot diffrent then gen 1..It wont take a normal cam and theres some other diffrences that kinda limit what can be done to it.im sure someone will chime in with specifics Yes, it's a OE roller camshaft block and 1 piece gasket crank. I am in a non emissions state My 98 GMC K2500 L29 7.4 litre has 2.5" true dual exhaust with pro Flowmax mufflers an X-Pipe, cat delete but still has both upstream and both downstream o2 sensors. Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. 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. Our tuning is custom to your vehicle so if you ever did have a dealer flash the computer it would wipe out the performance settings and revert to stock. The great thing about using a blow-though carburetor combination is the intercooling effect you get from the introduction of fuel. These modifications will help to generate more horsepower without adversely affecting fuel efficiency, which will ultimately increase net mileage. Oxygen sensor modifications can be done. I just put the k&N system on my truck made a huge difference in sound and performance I would deffanitly recomend spending the $250. Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? I am doing a full engine swap from a damaged motorhome to my older motorhome. Or is it what get is all you get? Yes, we can tune your ECM. Sequential-Port Fuel Injection (454 only had 2 Throttle Body Injectors) 3. But like any stock engine, there was tons of power left to be squeezed out. It is an all-iron engine (block and heads . Now, that poses the question: what would you shoehorn this big-block Chevy into? merci. Check if this part fits . Here is info from COMP Cams. Install an aftermarket windage tray in your engine. We set all the parameters in the PCM, so you will not have a way to make adjustments on your end. To others, the 7.4 Vortec 454 big-block was the perfect engine at the wrong time. In 1996, when all of GMs models received excellent reviews due to a new range of engines that added power, every one of its vehicles were praised by clients. Engine Hotrodders' Lounge Body - Exterior Transmission - Rearend . If you want to send your PCM in that you know is functional, that is the best way to do it. I was thinking about removing the catalytic converter and was wondering if your reflash will delete the "check engine" light that will probably occur when I cut it off? Yes, as long as it is a "J" (8th digit of the VIN) Vortec 7.4L, we can tune it. We would recommend speaking directly with a camshaft manufacturer to determine the best for your particular engine. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! Warmed up at idle the gauge is reading 1200RPM then put it into drive holding the brake and its reading about 1000RPM. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. The LS6 was discontinued after 1971 because of tighter emissions controls, and the LS5s power had dropped to about 245 horsepower by 1973 as a result of more stringent emission standards. Thanks for any help. 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. My question is that I have a 1998 7.4 parts truck. My next upgrade is going to be exhaust. The ignition timing was dropped to 21 degrees and after adding a few jets to the carburetor, we were rewarded with some serious power. This is perfect for an otherwise stock engine as the gains are the best bang for the buck by far. Seems like it's lacking power towing my boat. 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. Thinner oils allow the internal engine components to spin more freely and effectively, which improves their function. Whats the stock numbers on a Vortec 454? Install a high-flow air filter and a cold air intake. Full Forum Listing. We use the original black box PCM's. It would be a good idea to re-tune for the Banks and injection systems. Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? better yet have it tuned (Brian Bosch I believe is the man to talk to about . So if I have your tune done what is the turn around time sending my PCM to you? 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. I just purchased your UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning. Best of all, this engine will make that power all day long without the threat of grenading under the stress of a turbo or supercharger. Some differences are: 1. Wiring is the same. That extra air going into your engine needs to get out somehow; installing a full aftermarket exhaust system like this is always good for more fuel economy, especially when combined with a freer-flowing intake. Stronger shift points for towing and power. 2023 Power Automedia. what features will i gain with this new unit. They have a high strength carbon steel housing and a high performance rolled seam that exceeds OEM pressure requirements. Using 3.5-inch aluminum tubing from CXRacing, we configured the intercooler between the YSI supercharger and the blow-through carburetor bonnet. 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: Hot Rod decided to bolt up some typical speed parts. I have a 1996 Suburban K2500 with the L29 engine and 4l80 trans. The 4300 was GMs first Vortec-engine V6, released in 1986 and designed for trucks. The issue with your tachometer would only be fixed if there is an actual issue with your PCM. BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built . can you tune it Perform with these upgrades, We would like to have ordered the 7.4 custom tune ,but appearantly you are out of stock at the moment.Is there any time frame when you will have more modules.I would like to send you mine but I need my vehicle.Also we would like to have had the reasonable price. Is the pcm that is used a 411? FULL RESULTS-GEN 5 454 UPGRADE-STOCK PEANUT PORT HEADS. I have the 411. Is there anything to be gained within my parameters? The stock Vortec iron head will not tolerate more than .440-inch lift. For a better experience, please enable JavaScript in your browser before proceeding. Install a high flow air filter and cold air induction intake. They also installed roller lifters, heavy springs and chain/gears. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. We use cookies to ensure that we give you the best experience on our website. Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. I have a 2000 C3500 with the 454/L29 and auto trans. And performance tune? Without going into the engine, they make a supercharger kit for it, I know whipple use to. My car is GMC pick-up 7.4L 1998. it is manual transmission. It's a nice cam for a 454 big block chevy engine that runs with 1500-6500 RPM Range. Raylar performance packages allow your 496 to produce massive amounts of power without sacrificing reliability. Do you still tune the 96 ecm? I would like to get the o2 delete. However, this engine was developed mostly for large towing ability for CAFE-exempt passenger cars, so there is still room for improvement. Yes, this would be the compatible ECM with your VIN and part #. I've noticed a significant performance uptick, but it seems to fall flat in the upper mid-range, almost seems like it could use a MSD multi spark discharge, I don't know, but I'm considering having a dyno test to see what is happening. Just make sure to include that information in the order comments and we can make that happen for you :). I've made several performance upgrades myself, but are always looking for something better. I plan on the injector and ignition work done in march. In 2001, production of the 7400 line was discontinued. The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. The engine receives cooler, more oxygen-dense air through a chilly air induction system. JavaScript is disabled. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. I would think that u-haul did not use their own ECM. 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. Engine is in stock configuration with no upgrades. 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*. 1997 gmc 3500 cc dually. This upgrade will not only improve overall top end power but it also . We set it for the best performance in all conditions, it is not user adjustable. Free shipping. Pace Performance Products in Ohio put together a decent upgrade. I like my shift points where they are. My question is you claim 40-55 hp gain on the 7.4l , and all the other tuners on the internet only claim 20-25hp gain, will I really see 40-55hp gain with stock engine, exhaust, and air filter? We have a complete Banks Power System and Banks Air Flow. General Motors debuted the 7.4 Vortec in 1970, one year before emissions requirements were tightened and three years before the gas crisis hit with full force. It is bone stock except for tow mirrors and Kodiak door handles on all 4. I have a few questions so bear with me here. We have been doing them on a limited basis, it has been very challenging to find good cores to use. I heard these trucks have a torque management system does this computer give my truck back all its power? 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 single core from CXRacing featured 3.5-inch inlet and outlets and had been tested previously at over 1200 hp and 25 psi. We gain on average 45-50 horsepower and 50 ft. lb. $119.95. Performance. Just wondering because Id buy one of those as well. Is this enough information to create a tune or will you need more information? The 7.4L was originally offered in three versions: the LS5, LS6, and LS7 (which was never offered as a factory option to the general public). When you purchase, just let us know any modifications or requests and we can accomodate. The 8.1 Vortec was produced to compete with Dodge's 8.1 Magnum V10, and Ford's V10 Triton engines of the time. Rowe studied engineering, philosophy and American literature at Central Florida Community College. In our quest to locate a suitable 454, a typical rip to the wrecking yard revealed at least three of the four available big-block combinations. Our typical turn around time is 2-3 business days. I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. Use a set of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. Only a set of dyno headers and an electric water pump were different. After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. If i buy a tune do i need to send my ECU 1st or can you send me one then when i get the ECU from you send mine back to get my 100 back? Its 567 horsepower of usable, reliable, fun power that anybody on a budget can build. Headers suggested. I own a 1998 Safari Trek 2830 P32 chassis with an L29 28'7" Class A RV Drivetrain it s completely OEM.. This is a lie. 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. Probably cause no cats. That is the difference between cookie-cutter and custom! Yessir! Please contact us directly to set that up at 800-417-4559. Mfg Performance Parts www.straubtechnologies.com www.distributorgears.com It gets you an EGR blockoff plate for the Vortec 4.3/305/350 engines. For GM vehicles, the Vortec variant increased power by 60 horses. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Don't know how tuning would work. Great motor and runs strong with gobs of TQ. as far as the cam, make sure that year didnt have the core support going down the center of the rad (pretty sure it didnt). Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! This is only 1 of the many changes that we make with our programming to achieve great power gains. I know that my question is very reduntant but I need to ask it .I pull a trailer and want a little more tow po1wer. Please see our shipping terms for more information. We can tune the 2000 ECM for that engine and I'm pretty sure the ignition harness on that vehicle has no tie in with the ECM. Mar 20, 2011 #4 M MyBoTy Veteran Member Feb 9, 2002 1,567 Lubbock, Texas USA I wouldn't mind an EGR delete for the part throttle improvement and a cleaner intake, but mostly I would like to keep everything else functioning, I am looking for more torque below 3,000 rpms, ideally in the 1500-2500 range, because almost all of my driving is in that range. I replaced the relay to no avail. Parts overview- James L29 Vortec 454 build Ep2 - YouTube 0:00 / 19:37 Parts overview- James L29 Vortec 454 build Ep2 20,387 views Oct 10, 2019 391 Dislike Share Save Dick Hamm 4.68K. Another popular upgrade is changing to Bosch 4 hole injectors. This modification won't be cheap or easy to install, but will eventually pay for itself if you do a lot of towing or drive a lot of miles. It was only designed for Chevrolets high-performance vehicles, such as the Chevelle and Corvette, and there were claims that engine horsepower output was actually underreported by Chevrolet during the muscle car wars. It is quite a noticeable difference! I have a vortec454 in a non smog az tow vehicle. We would reprogram yours and put it in a new case so it looks nice! Could you do a downstream 02 sensor delete? Is it possible to upgrade the ECM on my 1994 Fleetwood Southwind Storm 454 TBI w/4L80E trans? Only a set of dyno headers and an electric water pump were different. http://www.cumminsdieselspecs.com/cummins_timeline.html, http://www.internationalpowerstroke.com/timeline.html, http://www.duramaxdieselspecs.com/compare_duramax.html, Tow rig Suspension and Axle upgrades questions (4th Gen Dodge). Although Chevrolet doesn't specifically recommend it for this engine, the extreme slipperiness of a full synthetic will allow you to run a thinner weight oil without worrying about undue engine wear. Reading some of your responses I came across one with regards to a 1996. A cold air induction setup will feed the engine cooler and more oxygen-dense air. Pindar 7.4 Vortec Specs Chevy based the 7.4 Vortec off their 454 big block engine, hence the name 454 Vortec. Performance Street, great low to mid-range. 454 L29 Power Upgrade. Do you offer anything for the 5.3? Interested, but don't want to buy one to find out i've already got it :D (my unit has 2 previous owners i think). Is there any way I could send you that one as a core in return for one to work in my 2000? Engineered specifically compatible with General Motors Vortec V8 engines,specifically compatible with General Motors Vortec V8 engines,Offering the quality,reliability,durability. Chevrolet 7.4 Vortec was a modern-day improvement of the firms most legendary big block. Mostly people saying to try this and try that. my ecm has to be replaced. If you are wanting to keep the truck otherwise stock, the tuning would be your best upgrade to boost the performance and it would definitely help the low end where you are wanting it to. We only specialize in the big block engines. You can expect about 40-45 horsepower and 45-50 lb-ft torque increase with much better throttle response, crisp shifts and there is a reduction in the "TQ Management". Unfortunately this is not something that we offer. Even stock we see impressive gains but even more so with the Banks PowerPack installed. There is a small red wire that has never been connected to anything. I know they were installed in trucks from 96- 00?. 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 $360.56. The upgraded Vortec 7400 is a 7.4L V8 OHV 16V-volt FI engine. The stock injectors are fine for our performance tuning. Im interested to know if you change the shift points or anything like that cause I have a shift kit in the transmission already. I am ready to pull the trigger if I continue to run 87 octane fuel. It was bone stock 2x4 extended cab dually. Forget the typical race-motor build up, Boneyard Boost was all about force feeding some tired, high-mileage workhorse we purchased for the paltry sum of $500 ($250 on half price sale weekend!). Windage trays are thin, sheet metal plates that bolt to the bottom of the main caps and act as a barrier between the oil in the pan and the crankshaft counterweights. Yes, it definitely will. As long as you don't have any emission systems removed, you will pass without any issues. This left us with Mark 4, Gen V and Gen VI big blocks to choose from, any of which would work for this project. I have had a hard time finding much of anything for these engines. In the end, we selected a 1999 Gen VI 454 and pulled it from its home in the engine bay of a 1-ton work truck. Are there any gains to be had by programing and adding headers to my truck? That represents a 70-percent increase in horsepower. A/T Flywheel, Hedman TEMS headers, and all the other good stuff that goes with a long block. Hi Warren, that is definitely something we can tune for. If you can supply me with your VIN and any part #'s that are on the ECM I can do some research. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. . He has worked as a tractor-trailer driver and mechanic, a rigger at a fire engine factory and as a race-car driver and builder. Also I dont have either downstream 02 sensors. It was the same size as the outgoing 7.4 L V8, but got a boost in power and more towing capacity. We would just need to know the tire size you are running and if the rear gear ratio was ever changed from factory. 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 Only tow rigs I have used to pull my Jeep with was this truck and my DD Driver 5.3 Tahoe. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. The Muscle Automobile Period had come and gone before the 7400 series debuted. We do not have a hard and fast rule on core returns for the UltraPower programming ECM's as long as it is in reason. Hello I have 2000 GMC k3500 Truck. The Vortec enhancements simply allowed GM to pass smog at a higher RPM. Feel free to call me with your vin # handy if you would like to get your order in. The exhaust does not have CATS with dual to the muffler and single exit tailpipe. We can do the tune now with the Banks kit taken into consideration for down the road. I dont have the 2000 VIN only the VIN from my 1995. He could even be found working on tractors or hay bailers while on vacation at his uncles farm. will your new part ecm work on this motorhome. . Hello! The only weak link is the peanut port factory heads and the sprinkler style fuel injection. Best, least expensive way to get more power out of this engine is with our custom tune. Dollar for Dollar, it is highly unlikely that the $2400 for a full blown Banks Power Package would yield the same cost/benefit as say the addition of the UltraPower GM / Workhorse 7.4L (454) Custom Tuning module. You are using an out of date browser. Originally Posted by PonyKiller87 Ok, sounds just like swapping over the 96-00 vortec 350 to the 0411 as far as the wiring goes. All rights reserved. I'm is Arizona and I'm planning a trip this month after Bonneville, to Aberdeen, home town, and Centralia, still have relatives there. If you had the proper tuning software, you could tune it yourself later. 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 Elgin Industries set of (16) Hydraulic Roller Valve Lifters compatible replacements for Big Block Chevy GMC & Pontiac engines. The problem with making more power is that cost and performance often go hand in hand. I THINK I want a diesel until I look at the prices. GMC 7.4L/454 JET Performance Parts and Accessories Brand: JET Performance Make: GMC Engine Size: 7.4L/454 Individual Parts Part Groups In-Store Pickup Results 1 - 25 of 117 25 Records Per Page Default Sort JET Performance Programmers 15024 Computer Programmer, Chevy, GMC/Cadillac, Fullsize Pickup/SUV, 4.3L/5.0L/5.7L/7.4L, V6/V8, Each I have a 2000 7.4 engine transmission and full wire harness and ECM from one motorhome and want to put it in my 1995 motorhome. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets.
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