My goal is to improve torque and trans efficiency then MPG. Yes, we can do that. 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. He eventually figured it out. Raylar performance packages allow your 496 to produce massive amounts of power without sacrificing reliability. Do a 12 swap and be done. 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. My question is what cam you would recommend for towing? Check the make, year, and model of your car to see if the VIN number is available. 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. 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 Mark McNabb was a contributor at TopSpeed from 2013 to 2018. Free shipping for many products! We do not go further back than 1996 (OBD2) modules, sorry. We can even modify these Chevy 454 rebuild kits to your specifications, giving your vehicle exactly what it needs for maximum performance. The main improvements will be improved shifting and overall more torque to pull hills. 1999 vortec 454 7.4 - HPTuners And what is the final cost of your ECM. I borrowed a friends TBI 454 dually to pull my blazer one time and it impressed the **** outta me. This thing is weak as water. 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. GMC 7.4L/454 JET Performance Parts and Accessories I fought this truck with the cats deleted and air pump disabled. We would just need to know the tire size you are running and if the rear gear ratio was ever changed from factory. 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. There are a lot of variables that play into the exact gains we can achieve but I would say somewhere around 45-50 HP and 60 Ft Lb. For GM vehicles, the Vortec variant increased power by 60 horses. 2000 Chevy Truck 454 Specs | It Still Runs The 8.1 Vortec was produced to compete with Dodge's 8.1 Magnum V10, and Ford's V10 Triton engines of the time. I own a 1998 Safari Trek 2830 P32 chassis with an L29 28'7" Class A RV Drivetrain it s completely OEM.. These modifications will help to generate more horsepower without adversely affecting fuel efficiency, which will ultimately increase net mileage. Full Forum Listing. Switch to a lightweight synthetic oil. The vin is for a 2004 gmc 1500 with a 5.3 vortec. Check for Availability: $349.95. It is $495 if your sending your core/pcm in first. I list that this RV was originally equipped with a 4.63 rear gear ratio and a tire size of 225/70R19.5. The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. With the shut downs due to the virus, our normal service company that does that for us is closed. I want to install a cam while you have the ECU. Whether your power boat is running boost or naturally aspirated, we have the correct performance parts for your application. I will be sending you my ECU. You can pretty easily get 400+ horses out of that thing and it be streetable. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. We are unaware of any cam upgrades specifically for the L21. Yes, you can pay the $100 up front core charge and be refunded when you send your original back to us. I have the parts list and see one item called 01-412-8 hyd roller cam for $315. 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. UltraPower GM / Workhorse 7.4L (454) Custom Tuning - Ultra RV Products The air filter is easily removed, cleaned, and reused. The banks system will give you 70hp and 85lb-ft. Chevy 8.1 Vortec Ultimate Engine Guide - Specs, Performance, Problems Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. The issue with your tachometer would only be fixed if there is an actual issue with your PCM. After the normally aspirated testing, we replaced the 750 Holley with a dedicated blow-through 850 Holley carburetor from Carb Solutions Unlimited (CSU) and installed the Vortech supercharger kit. I know they were installed in trucks from 96- 00?. Can I tune it myself later with my own tuner or is it still a black box like the oem? K&N fuel injection performance kit. 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. You will gain approximately 35-40 horsepower and 45 lb-ft torque. Cost would be $495. If you want to send your PCM in that you know is functional, that is the best way to do it. Warmed up at idle the gauge is reading 1200RPM then put it into drive holding the brake and its reading about 1000RPM. Precision Auto Injectors Genuine Delphi 12568155 12586557 GM Fuel Injectors Set of 6 2004-2007 GM 3.5L OHV. We will set the tune up based on your modifications and requests. Injector type: US-CAR, saturated. Apr 9, 2008 #4 7 70SSman Veteran Member Aug 11, 2005 134 Amston, CT, USA 100$ with low miles. The proper application of boost to any motor is never inexpensive, and our Vortech YSI supercharger was not what could be considered low-buck, but it was epic in its effectiveness. I'm interested in the available upgrades for the vortec 454. Is it possible to upgrade the ECM on my 1994 Fleetwood Southwind Storm 454 TBI w/4L80E trans? 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. Can you reprogram and net me the same HP & TQ numbers as the L29? We removed the factory EFI injection, and replaced it with simple carburetion. How much will the customization cost me? I think they were made before Chevy started using real tornados. Vehicle Monitoring and data-logging like no other! All above engines equipped wit Hydraulic Roller Lifters. How much can you get them for? vortec 454 cam? - Trucks, Trailers, RV's & Toy Haulers - ThumperTalk The only way to know for certain would be to pull the ECM and send to us so we can read it out and check. Roller Lifters 5. Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Performance Street, great low to mid-range. Are there any gains to be had by programing and adding headers to my truck? Check if this part fits . The Chevrolet 454 was phased out in most passenger vehicles by 1975, but it remained a viable power plant in heavy-duty Chevrolets until 1996. With the baby stock cam they made 290hp and 415 ft lbs of torque. 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? 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. 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". 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. The only weak link is the peanut port factory heads and the sprinkler style fuel injection. For a better experience, please enable JavaScript in your browser before proceeding. Growing up, Mark always had a mind for tinkering on random items throughout his home and dads garage, including a 1953 Ford Mainline and 1971 Corvette Stingray. 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?? 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. Any "recalibration" would require sending your ECM to us for programming changes. Thanks. If I order a ecm reprogram will this fix my speedometer error too?? The 454 cubic-inch 7400 Vortec V-8 GM motor, which produced 290 horsepower at 4,000 rpm and had 410 pound-feet of torque at 3,200 rpm, was a smooth four cylinder without much difference between the top and bottom. 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. L29 454 Vortec | Team Chevelle Oct 25, 2004 Do you guys know anything about the L29 Vortec motor. The ignition timing was dropped to 21 degrees and after adding a few jets to the carburetor, we were rewarded with some serious power. Probably cause no cats. Buy in monthly payments with Affirm on orders over $50. 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. Is it possible to get the newer 0411 with your tune for my truck. 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. It is not 4x4. (454 used only MAP) 2. Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! Explore Our Forums. I have a vortec454 in a non smog az tow vehicle. It is located on top of the radiator support and has 4 connectors going into the back of it. Primary or Expansion Gauges And Upgrade Kits (52mm) For 2008+ OBDII CAN bus vehicles, Upgrading SIx-Gun, Economind, and SpeedBrake, or use with BBus Sensor Modules. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. The budget portion of the equation came from a 7.4L Gen VI big-block Chevy straight out of the local wrecking yard. Most generic tuners only change very basic parameters within the computer, whereas UltraPower Tuning changes approximately 400 parameters including both engine AND transmission settings. If you can supply me with your VIN and any part #'s that are on the ECM I can do some research.