I have a 1996 Winnebago with a P30 chassis and a 454 75,000 miles and runs great. The General Motors 7400 is the name given to a 7.4-liter Vortec engine produced by GM from 1996 until 2001 as a truck engine. If it does work what would do for pulling and climbing hills? My car is GMC pick-up 7.4L 1998. it is manual transmission. All fuel injector specifications meet or exceed the manufacturer's specification standard. Just worth mentioning. 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. 2019 Rodney W. Brazel Inc. - Ultra RV Products is a Division of Brazel's RV Performance, UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning, within 24 hours from the order date. 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. 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. These Chevy 454 Vortec engines made 290 horsepower and 410 lb-ft. Chevy 454 HO Crate Engine Vortec 7400 engines were the final version of the 454 used in production vehicles or trucks. I just ordered an ECM for my 7.4 and was curious on if you guys did this tuning on the 5.7s? Steel Camshaft 4. If I send yall Parts list of what kind of cam, injectors, pistons, etc. I have a 1996 C3500 crew cab dually with a 7.4. I'm saving up for the banks power pack system. I was interested in your tune for this engine and was wondering what your best guess on the horse power / toque gains would be. Also the torque management. Gains with the modifications you have done would be around 45 HP/ 45 TQ. Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? I've always heard that they were a good upgrade to the TBI 454 and earlier 454 heads. K&N Performance Fuel Filters are built for high flow rates and capacity while they provide outstanding filtration. If I order a ecm reprogram will this fix my speedometer error too?? Even better than the big peak gains was the fact that the cam swap . Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. If you send us your PCM, our turn around is usually 1-2 days. 1996 c3500 dually 7.4 with 5 speed. do you think I could get more power with your ecm re-program? I straight wired it to test it and it will run. No videos but your ECM is fairly easy to identify and replace. Injector type: US-CAR, saturated. I have 2000 Itasca, 30 foot Class A motor home with a high mileage engine, will the ECM performance reprogramming, short the life of my engine? 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. It may not display this or other websites correctly. 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. Yes, we could accept the PCM from your '98 as the core. Eric, we can program for EGR delete, cost would be $ 495.00 and would also include the performance tune . I think I am going to swap on a good set of aftermarket heads and change out to an Edelbrock Pro Flo EFI. 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. Jump to Latest Follow . Boost your horsepower, torque, throttle response and fuel economy with the advanced Innovative Performance Chip compatible with your Chevrolet Silverado 1500! Hello! I have a 2000 C3500 with the 454/L29 and auto trans. thanks, Hey i have a 1997 chevy k2500 7.4 manual nv4500 trans 3.73 engine bone stock with 45,678 on rebuild with a working good ecm is tunning a question if so how much $. Thanks. Hot Rod decided to bolt up some typical speed parts. 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 have a 98 C-3500 dually with a Vortec 454. I have a 2000 gmc k2500 with the l29 454. That is the difference between cookie-cutter and custom! This upgrade will not only improve overall top end power but it also . If not can a non uhaul ecm be used (ie plugged into the current harness)? Great motor and runs strong with gobs of TQ. This engine series was utilized on Chevrolet and GMC large truck models such as the Suburban from 1996 through 2001. 49073 - Banks Power TorqueTubes GM P-series 7.4L 454 96-00, SPW7400 - UltraPower 7.4L Vortec Magnum Workhorse/Chevrolet Spark Plug Wires (1996-2000). He could even be found working on tractors or hay bailers while on vacation at his uncles farm. We can also take care of the TQ management for you. high flow intake elbow, filter and MAF The most important changes that are made have to do with spark advance, fueling, transmission shifting and torque management settings. O-rings: Top and bottom, 14.5 mm - Viton. I've installed hypertech power programmer, lower thermostat, gale banks torque tube headers and full exhaust, with hi-flow catalytic converters, shift-kit for tranny and larger external cooler. For a better experience, please enable JavaScript in your browser before proceeding. Roller Cam, .483 Lift . Can i tell if my RV has this already? Technical Specifications: No filter cleaning required for up to 100,000 miles. Free shipping. Please just leave in the order comments your requests to be done. Or if I pay to send in, is the return shipping included in the $495? Can I reprogram on the fly as conditions change and performance needs warrant a change?? He eventually figured it out. Can you tune my new 2000 ECM and will it work without the original key and ignition harness. Yes, we can do that. I like my shift points where they are. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. This is perfect for an otherwise stock engine as the gains are the best bang for the buck by far. 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 tune the original black box PCM but do not do the 411 swap. Alright Jay! "SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines. Buy your Painless Performance 60211 Standard Length MPFI Harness for 1996-2000 GM Vortec 7.4L V8 at Amazon! Does this computer hav egr delete programmed into it. I know they were installed in trucks from 96- 00?. 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. When you purchase, just let us know any modifications or requests and we can accomodate. Do you have identifying marks on the ECU? Yes, it definitely will. I recently ordered an ecm for a 7.4 vortec and was very impressed. Can I tune it myself later with my own tuner or is it still a black box like the oem? Once the order is placed and you have paid for a core, we will program a PCM here and ship it with a return shipping label for your core. I am doing a cam swap on a 98 GMC K3500 7.4 comp cams telks me i will need a custom tune according to cam specs this truck is primarily used for towing plan to use stock fuel injection if posdible any info would be greatly appreciated, I have a 1996 Chevrolet K3500 what is 7.4 454. and will it improve my over all power? It was bone stock 2x4 extended cab dually. Edlebrok performance heads with factory Combustion chamber size 100-110cc, valves set for .700 lift, I-2.190 E-1.880, 3/8" guideplates : http://www.summitracing.com/parts/EDL-60499/ GM Vortec EGR blockoff plate p/n is 12554606. Later i want to install the banks PPB 49070 package on this motorhome next year. Hi Warren, that is definitely something we can tune for. The single core from CXRacing featured 3.5-inch inlet and outlets and had been tested previously at over 1200 hp and 25 psi. Check back with us as we plan on adding a set of Brodix Race Rite aluminum heads to the mix in Part 2 of Project Boneyard Boost. 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). It debuted in 1970 as an upgrade of the 427 big-block V8 engine. 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. I have a 1996 Suburban K2500 with the L29 engine and 4l80 trans. Yes we modify the shift patterns to hold the upper gears longer, your shift kit would not interfere or cause issues. A cold air induction setup will feed the engine cooler and more oxygen-dense air. Yes, all gains listed are with 87 octane gas. This left us with Mark 4, Gen V and Gen VI big blocks to choose from, any of which would work for this project. We only specialize in the big block engines. As you can tell, it doesn't deliver much. 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. I filled out a form and sent to COMP Cams to see what they recommend and sent an e-mail to Blackbear to see what cams they had experience with since I will need to PCM tune redone. 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? Hello I have 2000 GMC k3500 Truck. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidaysareprocessed on thenext business day. The results: 567 horsepower and 537 pound-feet of torque on 89-octane pump gas! If product is incorrect for the provided VIN we will contact you to revise order. You can pretty easily get 400+ horses out of that thing and it be streetable. is this unit ready for plug and play. Switched to Mass-Air Flow. How to Get More Horsepower From a 360 dragster engine image by Robert Young from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. 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. See listing details. 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. 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. Check the make, year, and model of your car to see if the VIN number is available. All rights reserved. The 454 Vortec is the last in a line of one of the most successful classic engines in GM history. Can you reprogram and net me the same HP & TQ numbers as the L29? The main improvements will be improved shifting and overall more torque to pull hills. At times I get a dtc for bank 1 and 2 too rich. For this one, I would want you to send your PCM into us to be done. 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). It is quite a noticeable difference! K&N fuel injection performance kit. Reasons to buy: As long as the engine is well maintained, reliability is not affected. What type of gains could I expect with a tune for this? Marks spare time was heavily consumed by reading automotive magazines and wondering how in the heck people could land a job testing cars all day. With the intercooler assembly in place, we once again ran the blown big block in anger with amazing results.
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