The Vortec 7400 as you know lays down 290 HP and 410 LbFt of Torque. It is a redesigned Chevrolet Big-Block engine and was introduced with the 2001 full-size pickup trucks. If I send yall Parts list of what kind of cam, injectors, pistons, etc. Is there anything to be gained within my parameters? Alright Jay! For a better experience, please enable JavaScript in your browser before proceeding. You can source the 454 HO directly from Chevrolet. This cam is designed specifically for the TBI 350 small-block and specs at 194/214 degrees of duration at .050-inch tappet lift with .398/.442-inch lift. Edelbrock 7162 Performer 454 Cam kit can produce 540 horsepower and 530 ft-lbs torque power on a 454 engine. 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? I do still have all the O2 sensors but would like to delete them if possible. 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 Whether your power boat is running boost or naturally aspirated, we have the correct performance parts for your application. These modifications will improve net mileage without sacrificing power, resulting in better overall mpg. For more information, visit www.P65Warnings.ca.gov, NOTICE: Fororders outside of United States. For a plain jane Sierra, not bad in my opinion. im wanting /needing power and torque. The ignition timing was dropped to 21 degrees and after adding a few jets to the carburetor, we were rewarded with some serious power. $360.56. 454 HO Crate Engine | Big Block | Chevy Performance Parts - Chevrolet Heads, intake and headers would definitely wake it up. I just purchased your UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning. The budget portion of the equation came from a 7.4L Gen VI big-block Chevy straight out of the local wrecking yard. 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: How to Make Power with a Chevy TBI V-8 - MotorTrend Would this work on 1996 7.4L L29? 454 vortec or 8.1 swap? | Chevy Impala SS Forum 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. Truck has k&n air filter, 2.5 inch exhaust (no cats), e3 spark plugs and 8.5mm plug wires. Gains will be on par with what we achieve with the RV's so it will very well suited for towing. The great thing about using a blow-though carburetor combination is the intercooling effect you get from the introduction of fuel. Well, they can be had stupidly cheap, not counting the extra work it takes to remove the engine and then dispose of the lifeless RV. After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. Thanks. The tune will definitely wake the truck up. 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. Can i tell if my RV has this already? Vortec 8100 8.1L Chevy GM Performance Parts - GEN 7 Big Block - 496MAG Later i want to install the banks PPB 49070 package on this motorhome next year. The Chevrolet 454-cubic-inch, or 7.4-liter, V-8 engine was an extremely powerful gas guzzler that should have remained obscure after the 1973 oil crisis. Dedicated to making your Chevy Truck bad***. Engine Hotrodders' Lounge Body - Exterior Transmission - Rearend . It has an ohv configuration with two valves per cylinder and a bore and stroke of 4.24 inches x 3 on the intake side. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. We are currently out of clean/painted cases for the PCM's. 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. m) at 3200 rpm. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. Could you do a downstream 02 sensor delete? is this unit ready for plug and play. L29 454 Vortec | Team Chevelle Please contact us directly to set that up at 800-417-4559. I have a uhaul topkick with the 7.4. 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). Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! We appreciate it but we only specialize in the big block engines. Truck is stock otherwise and runs good just looking for more out of it. do you think I could get more power with your ecm re-program? I won't change the exhaust or add a ring eating K&N. The 4300 was GMs first Vortec-engine V6, released in 1986 and designed for trucks. 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 Any thoughts from you technical guys? How To Add 70 Percent More Power to A Chevy 454 V-8 - Top Speed We can adjust for speedometer error. Our acclaimed editorial staff covers all aspects of engine and driveline upgrades with a mission of presenting information that is both interesting and achievable for the average car guy. K&N fuel injection performance kit. However, Chevy still offers the 454 big block V8 as a crate engine. Short tube headers won't do anything for you but long tube headers would he beneficial. I replaced the relay to no avail. Mark McNabb was a contributor at TopSpeed from 2013 to 2018. The Vortec 8100 was built off of the GM 454 engine platform, also known as the 7.4 Vortec. Recommended 454 TBI modifications | TBI - harristuning.com I have a 1998 Winnebago Brave on a p30 chassis with the 7.4 with a Banks Power Pack. At times I get a dtc for bank 1 and 2 too rich. I have a 98 C-3500 dually with a Vortec 454. This is a crew cab, 8 foot bed. I've made several performance upgrades myself, but are always looking for something better. Switch to a lightweight synthetic oil. high flow intake elbow, filter and MAF 3. While we do get reports back of fuel economy gains, that is something we can not guarantee as there are just too many variables that can affect an RV's fuel economy. We removed the factory EFI injection, and replaced it with simple carburetion. Don't know how tuning would work. However, this engine was intended to provide significant towing power for CAFE-exempt vehicles, so there is still room for improvement. Is it worth tuning a black box or worth changing to 411, I have headers ,cat delete, 19.5 five 0 injectors, and Pulling cam swap. It is $495 if your sending your core/pcm in first. Yes, it definitely will. The Gray, the green with white strip and the black test grounded. Any "recalibration" would require sending your ECM to us for programming changes. We only specialize in the big block engines. Is this enough information to create a tune or will you need more information? I heard these trucks have a torque management system does this computer give my truck back all its power? 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. After selecting a motor, we set about making the necessary changes for our test. 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. Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. I THINK I want a diesel until I look at the prices. Change to a synthetic oil that is light-weight. 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!). This mod will not be inexpensive or simple to execute, but it will pay for itself if you do a lot of towing or drive a lot of miles. If I order a ecm reprogram will this fix my speedometer error too?? . Is the pcm that is used a 411? Thank you. That extra air entering your engine must go somewhere; a full aftermarket exhaust system like this is always beneficial to fuel efficiency, especially when combined with a freer-flowing intake. Yes, we can tune your ECM. Also the torque management. We don't however specialize in forced induction applications so we would not be able to help you with that. 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. Hardin Marine - EFI Upgrade Kits Stage 1 Upgrade for Mercury 525 EFI. Right now I have a CAI, 2" full length headers, 3" dual exhaust and EGR delete. The 7400 was essentially the same big block 454 that carried Chevy through the muscle car years, but a hydraulic roller camshaft and revised cylinder heads helped to make it far more efficient than the old LS6 could ever dream of being. The Chevrolet 454s of the 1970s were the most powerful, with the LS5 producing approximately 360 horsepower and the LS6 generating around 450 horsepower. 1999 vortec 454 7.4 - HPTuners what does this do at emission inspections?? It specs out at 265 HP@4500 RPM and 340 ft/lbs of torque@3500 RPM. This engine has two valves per cylinder and features multi-port fuel injection. CHEVROLET 7.4L/454 Parts and Accessories - Summit Racing Equipment Chevrolet Performance 454 HO 454ci/438HP Crate Engine - JEGS Now, that poses the question: what would you shoehorn this big-block Chevy into? We can tune it if you can build it :). So, I am contemplating upgrading this thing for more power, or selling and buying a Dmax. Its amazing what some bolt-on parts can do! First off, I snagged a used 454 throttle body off ebay and sent it out to www.rvmorsemachine.com to get bored to 54mm for some decent air flow for this big block project. Cost would be $495. 16238212. I straight wired it to test it and it will run. 1014127996-upoval..CLOSED.."Vortec 7400", 100cc chambers Also, is shipping included both ways? This engine series was utilized on Chevrolet and GMC large truck models such as the Suburban from 1996 through 2001. Install an aftermarket windage tray in your engine. Anything that will help the performance. There is a small red wire that has never been connected to anything. Reading some of your responses I came across one with regards to a 1996. We can tune stock or modified, not a problem. Vortech Superchargers If you can supply me with your VIN and any part #'s that are on the ECM I can do some research. The terms ECM, PCM, and VCM are all used to describe the engine computer by various manufacturers, yours is located above the radiator . Makes NO permanent changes to your vehicle's computer! Obviously different, but I still think the 454 has more to offer. How to Make a Chevy 454 Vortec More Efficient | It Still Runs We include a data recorder with the ECM for your to record engine data and send to us to verify all engine systems are running efficiently. Truth be told, Vortech offered a number of Maxflow Aftercooler systems but we selected an intercooler core we had on hand for testing. All other modifications are going to be expensive, labor intensive and still not necessarily yield the same results. 7.4 chevy engine in georgia boy pursuit motorhome. If you had the proper tuning software, you could tune it yourself later. Vehicle Monitoring and data-logging like no other! At this point the engine run well, with no code problems. $399.99. The batteries are fully charged and there is 12 volts to the distributor. With our tuning, peak horsepower is at about 3500 RPM and peak torque is about 2500 RPM. 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?