Power & Performance News is the source for news, tech and products that help you get more performance from your vehicle. We use cookies to ensure that we give you the best experience on our website. It was produced as a gas alternative to the new Duramax LB7 diesel, offering a high-torque gas engine capable of towing just about anything. 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). A stock 12v ain't got **** on a BBC. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. It was bone stock 2x4 extended cab dually. 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. Will the UltraPower tune, give me the "best bang for my buck" performance increase? Body Diameter: 16 mm. 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 Raylar performance packages allow your 496 to produce massive amounts of power without sacrificing reliability. Hello I have 2000 GMC k3500 Truck. Just wondering because Id buy one of those as well. Here is info from COMP Cams. Nothing I was finding really listed ACTUAL upgrades. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidaysareprocessed on thenext business day. Do a 12 swap and be done. youll have to stick to a torque cam because of the computor needs vacuum (speed density) headers will help greatly. Cats have been removed as well as smog pump. They also installed roller lifters, heavy springs and chain/gears. It was utilized in the Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, and Chevrolet Express. 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. I recently ordered an ecm for a 7.4 vortec and was very impressed. You will gain approximately 35-40 horsepower and 45 lb-ft torque. I am ready to pull the trigger if I continue to run 87 octane fuel. We CAN tune the engine computer with our UltraPower tuning to get more performance but we MUST have you send your PCM in to us for programming as it has a unique PCM that we don't have cores for. 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. high flow intake elbow, filter and MAF The greater the power gains, the bigger the budget. 454 vortecgood or bad | Performance Boats Forum I like my shift points where they are. 454 L29 Power Upgrade | Hot Rod Forum Is the Vehicle Control Module an ECM by another name? If you send us your PCM, our turn around is usually 1-2 days. The 1993-or-so design FEAD has been shown the clear the factory hood. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. Et si je devrai faire recalibrer mon ecm? Having tried the things you already have, I am pretty confident the issue is the PCM. Most ordersare shippedwithin 24 hours from the order date. 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/. Mark McNabb was a contributor at TopSpeed from 2013 to 2018. 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. Don't worry about what a camshaft may produce at 4000-5000 rpms in truck engines like this - YOU DON"T DRIVE THERE! 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. Obviously different, but I still think the 454 has more to offer. If it does work what would do for pulling and climbing hills? Build your own custom newsletter with the content you love from Street Muscle, directly to your inbox, absolutely FREE! We set it for the best performance in all conditions, it is not user adjustable. Short tube headers won't do anything for you but long tube headers would he beneficial. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. I use the truck for towing and it is quite weak, If this ecm has to be reprogrammed in the future do I go to GM Dealer or have to send back to you?? We removed the factory EFI injection, and replaced it with simple carburetion. 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. I am doing a full engine swap from a damaged motorhome to my older motorhome. 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. 2000 Chevy Truck 454 Specs | It Still Runs Boost your horsepower, torque, throttle response and fuel economy with the advanced Innovative Performance Chip compatible with your Chevrolet Silverado 1500! 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. 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? 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. Yes you are correct that there is torque management which "pulls" back power when taking off from a stop. Yes it would, the Banks PowerPack is helping the engine breathe better but the computer is not doing anything to take full advantage of it. Yes, we could accept the PCM from your '98 as the core. 12568774 438 HP @5300 RPM 500 LB/FT @3500 RPM 1 2 Updated Design The 454 HO features an all-forged rotating assembly for great strength and durability. The cooler charge air (plus tubing length and bends) dropped the peak boost pressure from 19.1 psi down to 17.7 psi. Makes NO permanent changes to your vehicle's computer! 4.56 might be abit tall. 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? After installed Ultrapower GM/ Workhorse 1998 7.4l Vortec 454c. In addition to the powerful YSI supercharger, the kit included a cog-drive system to eliminate belt slippage under boost. We modify this so that it is still "safe" but definitely wakes the truck up. 2. There is a small red wire that has never been connected to anything. He eventually figured it out. 3. 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. Yes, we tune for 87 octane unless a higher octane is requested. 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. We can even modify these Chevy 454 rebuild kits to your specifications, giving your vehicle exactly what it needs for maximum performance. If product is incorrect for the provided VIN we will contact you to revise order. It is not 4x4. Yes our tuning does work for trucks as well. The 4300 was GMs first Vortec-engine V6, released in 1986 and designed for trucks. New 2-Piece Intake Manifold w/Long Intake Runners 7. Reasons to buy: We would recommend speaking directly with a camshaft manufacturer to determine the best for your particular engine. Elgin Industries set of (16) Hydraulic Roller Valve Lifters compatible replacements for Big Block Chevy GMC & Pontiac engines. 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. Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. 454 Project Tow Beast - TBICHIPS | TBI I wish we could say for sure that you will be able to see a nice gain but we try not to over-promise on that. Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. Parts overview- James L29 Vortec 454 build Ep2 - YouTube The problem with making more power is that cost and performance often go hand in hand. Check if this part fits . I think I am going to swap on a good set of aftermarket heads and change out to an Edelbrock Pro Flo EFI. If you are placing an order to ship outside the United States, Shipping Insurancewill be required and added automatically at checkout. 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. This is a crew cab, 8 foot bed. Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. Only a set of dyno headers and an electric water pump were different. 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. 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). This is only 1 of the many changes that we make with our programming to achieve great power gains. If so, is that the unit that sits above the radiator of a 2000 Itasca Suncruiser V32 w/ L29 7.4l (454ci) Vortec? 2023 Power Automedia. For this one, I would want you to send your PCM into us to be done. 454 MK VI (vortec) | NastyZ28.com 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. Also how much benefit do you think I would gain by going aftermarket catback exhaust. Dodge RAM 3.0 Ecodiesel Performance Upgrades Guide, Best Ford 6.7 Powerstroke DPF Delete Kit Upgrade. watch out for chips as they just bump the fuel curve. 4 Bolt Main GM Factory Vortec, Edelbrock's Performer Multi-Point EFI. I have a 2000 C3500 with the 454/L29 and auto trans. I will be sending you my ECU. It won't hurt anything to run like that. So, what are the most common problems with the Chevy 454 Vortec? It gets you an EGR blockoff plate for the Vortec 4.3/305/350 engines. 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. 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? It is an all-iron engine (block and heads . The 454 Vortec is the last in a line of one of the most successful classic engines in GM history. 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. Fortec4x4 Jeep Customizing - FORTEC4x4
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