I sprayed starter fluid in the tbi and it fired up for a few second. 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. However, this engine was intended to provide significant towing power for CAFE-exempt vehicles, so there is still room for improvement. It may or may not have a decal on the ECM depending on if they did a mail order tune or came in to our shop. Thank you. 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. As long as the engine is well maintained, reliability is not affected. 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. 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? To others, the 7.4 Vortec 454 big-block was the perfect engine at the wrong time. 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. You can source the 454 HO directly from Chevrolet. I have the 411. This 1-ton dually truck is used for hauling a large slide in camper and atv trailer. The bill: $3,699.96 for all but the carb. Your vehicle is not compatible. I have a 2000 OBS Chevy quad cab with a 454 Vortec. Chevrolet 7.4 Vortec was a modern-day improvement of the firms most legendary big block. We only specialize in the big block engines. The heads, pistons, and intake are stock. We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. What are your recommendations?? All rights reserved. If you can supply me with your VIN and any part #'s that are on the ECM I can do some research. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! If not can a non uhaul ecm be used (ie plugged into the current harness)? Without going into the engine, they make a supercharger kit for it, I know whipple use to. I fought this truck with the cats deleted and air pump disabled. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. Is the pcm that is used a 411? what does this do at emission inspections?? 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 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? Its amazing what some bolt-on parts can do! do you think I could get more power with your ecm re-program? Any thoughts from you technical guys? I am certain we can get more power and overall better drivability with our tuning versus your current setup. 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. The stock Vortec iron head will not tolerate more than .440-inch lift.
454 vortecgood or bad | Performance Boats Forum All fuel injector specifications meet or exceed the manufacturer's specification standard. will i notice anything? 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. 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. Oil tends to collect on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons) and reducing horsepower through parasitic drag. You can either pay $100 for the core and then be refunded when we receive back yours or you can send in your ECM for reprogram. After installed Ultrapower GM/ Workhorse 1998 7.4l Vortec 454c. A/T Flywheel, Hedman TEMS headers, and all the other good stuff that goes with a long block. 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. Install a high flow air filter and cold air induction intake. Some parts are not legal for use in California or other . Roller Lifters 5. Hello I have 2000 GMC k3500 Truck. I recently ordered an ecm for a 7.4 vortec and was very impressed. 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. Banks iDash: SuperGauge & DataMonster. Your email address will not be published.
1996 K3500 454 (7.4L) | Off Roading Forums Apr 10, 2008 #5 M MyBoTy Veteran Member Whats the stock numbers on a Vortec 454? If you would like to place your order feel free to give me a call at 800-417-4559. What sets us apart from the others? My next upgrade is going to be exhaust. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. The peak numbers jumped from 791 hp and 713 lb-ft with no intercooler to 847 hp and 761 lb-ft with the intercooler. Precision Auto Injectors Genuine Delphi 12568155 12586557 GM Fuel Injectors Set of 6 2004-2007 GM 3.5L OHV. I've made several performance upgrades myself, but are always looking for something better. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? During its five years on the market, the 7400 was employed in 26-foot U-Haul trucks for commercial purposes. I won't change the exhaust or add a ring eating K&N. A restrictive or clogged air filter makes the engine work harder to breathe, which reduces efficiency. I straight wired it to test it and it will run. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidays, If you will be sending us your ECM for reprogram you will need to select "Remove Core Charge". It is bone stock except for tow mirrors and Kodiak door handles on all 4.
2000 Chevy Truck 454 Specs | It Still Runs That is the difference between cookie-cutter and custom! Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. Always a big complaint with 454 TBI trucks. We are currently out of clean/painted cases for the PCM's. Thanks. The Vortec 7400 as you know lays down 290 HP and 410 LbFt of Torque. Thanks. For a plain jane Sierra, not bad in my opinion. 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. I have a 2000 OBS Chevy quad cab with a 454 Vortec. Please contact us directly to set that up at 800-417-4559.
vortec 454 cam? - Trucks, Trailers, RV's & Toy Haulers - ThumperTalk Based on experience, we have had good results with Comp Cams 212/218 hydraulic roller camshaft. However, this engine was developed mostly for large towing ability for CAFE-exempt passenger cars, so there is still room for improvement.
454 MK VI (vortec) | NastyZ28.com 7.4 and 8.1 vortec hp and tq ratings | Diesel Place 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.
How to Make Power with a Chevy TBI V-8 - MotorTrend Vehicle Monitoring and data-logging like no other! The vin is for a 2004 gmc 1500 with a 5.3 vortec. 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. The compression was plenty low for use with the blower, but the extra power it provided would eventually be multiplied by the boost. Apr 9, 2008 #4 7 70SSman Veteran Member Aug 11, 2005 134 Amston, CT, USA 100$ with low miles. I have been watching lots of posts and things get carried away very quickly about getting big big hp. Most generic tuners only change very basic parameters within the computer, whereas UltraPower Tuning changes approximately 400 parameters including both engine AND transmission settings. 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.
454 L29 Power Upgrade | Hot Rod Forum . I own a 1998 Safari Trek 2830 P32 chassis with an L29 28'7" Class A RV Drivetrain it s completely OEM.. Oxygen sensor modifications can be done. Use for stock replacement OEM original equipment.
Need advice: 454 VI L29 Build | Hot Rod Forum Gasoline engines do not require different settings for different conditions like a diesel engine does. Originally Posted by PonyKiller87 Ok, sounds just like swapping over the 96-00 vortec 350 to the 0411 as far as the wiring goes. The performance chip is fully compatible with your Chevrolet Silverado 1500 in all trims, including the 2.7L, 3.0L, 4.3L, 4.8L, 5.0L, 5.3L, 5.7L, 6.0L, 6.2L and 7.4L engines. 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 Steel Camshaft 4. 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 can even modify these Chevy 454 rebuild kits to your specifications, giving your vehicle exactly what it needs for maximum performance. 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. Yes we modify the shift patterns to hold the upper gears longer, your shift kit would not interfere or cause issues. Does this upgrade have a negative or positive impact on engine life?
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