However, this engine was intended to provide significant towing power for CAFE-exempt vehicles, so there is still room for improvement. Check for Availability: $349.95. We are not able to assist in providing this PCM. Buy in monthly payments with Affirm on orders over $50. Best of all, this engine will make that power all day long without the threat of grenading under the stress of a turbo or supercharger. 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. A stock 12v ain't got **** on a BBC. Or if I pay to send in, is the return shipping included in the $495? Is there anything to be gained within my parameters? The 8.1 Vortec was produced to compete with Dodge's 8.1 Magnum V10, and Ford's V10 Triton engines of the time. Any thoughts from you technical guys? 1998 k 3500 454 auto 4:10 Dually..What on earth can I do to get more out of my truck..without mortgaging the house. Using 3.5-inch aluminum tubing from CXRacing, we configured the intercooler between the YSI supercharger and the blow-through carburetor bonnet. Can you reprogram and net me the same HP & TQ numbers as the L29? Free shipping. What are your recommendations?? Normally, advancing the distributor would increase octane sensitivity and possibly fuel economy, but the upgraded ignition system will allow you to do so without adversely affecting fuel burn or horsepower. In addition to the powerful YSI supercharger, the kit included a cog-drive system to eliminate belt slippage under boost. my ecm has to be replaced. At the relay the Orange wire is hot with 12 volts continually. Can you guys tune that ecm? Yes, this would be the compatible ECM with your VIN and part #. The Vortec 8100 (RPO L18) is a V8 truck engine. The 1993-or-so design FEAD has been shown the clear the factory hood. How To Add 70 Percent More Power to A Chevy 454 V-8 - Top Speed Thanks for any help. Cost is $395 plus a $175 core charge which is refundable. What type of gains could I expect with a tune for this? 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. This engine series was utilized on Chevrolet and GMC large truck models such as the Suburban from 1996 through 2001. Whats the stock numbers on a Vortec 454? It was only designed for Chevrolets high-performance vehicles, such as the Chevelle and Corvette, and there were claims that engine horsepower output was actually underreported by Chevrolet during the muscle car wars. Reasons to buy: Yes you are correct that there is torque management which "pulls" back power when taking off from a stop. When it shows 55 MPH your actually going about 57 to 58 MPH. Howards, Hydraulic Roller Camshaft, Chev BB Gen 6 454-502, GM, Chev BB Billet Steel Hyd. 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. UltraPower GM / Workhorse 7.4L (454) Custom Tuning - Ultra RV Products Yes our tuning does work for trucks as well. Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. Chevrolet 7.4 Vortec was a modern-day improvement of the firms most legendary big block. The 8th digit of your VIN is the letter "D" which designates your engine as a 7.4L LP4 which is different from a normal L29 7.4L. To others, the 7.4 Vortec 454 big-block was the perfect engine at the wrong time. It was utilized in both performance automobiles and trucks, as well as maritime and industrial applications in various combinations. . So, what are the most common problems with the Chevy 454 Vortec? I have a 1996 Suburban K2500 with the L29 engine and 4l80 trans. Pindar GMC 7.4L/454 JET Performance Parts and Accessories Brand: JET Performance Make: GMC Engine Size: 7.4L/454 Individual Parts Part Groups In-Store Pickup Results 1 - 25 of 117 25 Records Per Page Default Sort JET Performance Programmers 15024 Computer Programmer, Chevy, GMC/Cadillac, Fullsize Pickup/SUV, 4.3L/5.0L/5.7L/7.4L, V6/V8, Each 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). 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. Chevy 5.7 Vortec Engine Performance Upgrades It may not display this or other websites correctly. 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. Every horsepower subtracted as a result of parasitic drag is one less horsepower that wont help your truck travel down the road. I'm sure there are other differences that would need to be addressed but you should still be able to re-use the original key and ignition harness. Also how much benefit do you think I would gain by going aftermarket catback exhaust. I want to install a cam while you have the ECU. If you don't mind a "dirty" PCM case then we can take care of an order for 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. Recommended 454 TBI modifications | TBI - harristuning.com . The Gray, the green with white strip and the black test grounded. There is a small red wire that has never been connected to anything. The 454 HO crate engine boasts 438 HP and 500 lb-ft of torque. better yet have it tuned (Brian Bosch I believe is the man to talk to about . Any "recalibration" would require sending your ECM to us for programming changes. We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. Is the pcm that is used a 411? 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. We removed the factory EFI injection, and replaced it with simple carburetion. 454 vortecgood or bad | Performance Boats Forum 2000 Chevy Truck 454 Specs | It Still Runs Do a 12 swap and be done. Does this upgrade have a negative or positive impact on engine life? Please contact us directly to set that up at 800-417-4559. Weve seen a few 1996-1997 PCMs with this issue. This is a stock style setup, featuring a 4.000" stroke and bore sizes ranging from 4.250" (standard) to 4.375". 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/. Make use of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. The heads, pistons, and intake are stock. It's a nice cam for a 454 big block chevy engine that runs with 1500-6500 RPM Range. The 7.4 Vortec was essentially the same big block 454 that Chevrolet used to power its muscle cars, but it gained a hydraulic roller camshaft and improved cylinder heads to make it considerably more efficient than the old LS6 could ever hope for. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. When you buy a single component or a complete kit, like a camshaft, you must ensure that it is suitable for your car. Obviously different, but I still think the 454 has more to offer. Check if this part fits . He eventually figured it out. torque so it will definitely be able to hold the upper gears better when hill climbing and have improved acceleration. Programmers. I recently ordered an ecm for a 7.4 vortec and was very impressed. The same 290 horsepower that was standard for all GM cars in 1980 was maintained throughout the decade. Raylar performance packages allow your 496 to produce massive amounts of power without sacrificing reliability. I plan on the injector and ignition work done in march. watch out for chips as they just bump the fuel curve. The UltraPower ECM performs very well on both stock engines and ones that have been upgraded with other modifications. How To Add 70 Percent More Power to A Chevy 454 V-8. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? This modification won't be cheap or easy to install, but will eventually pay for itself if you do a lot of towing or drive a lot of miles. Parts overview- James L29 Vortec 454 build Ep2 - YouTube 0:00 / 19:37 Parts overview- James L29 Vortec 454 build Ep2 20,387 views Oct 10, 2019 391 Dislike Share Save Dick Hamm 4.68K. Free Shipping over $199* Same Day Shipping before 7pm* Price Match Guarantee Free Shipping over $199* Same Day Shipping before 7pm* Thanks. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. Need advice: 454 VI L29 Build | Hot Rod Forum Warmed up at idle the gauge is reading 1200RPM then put it into drive holding the brake and its reading about 1000RPM. Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! 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. performance upgrades for 88-94 TBI chevy truck.? 7.3 is 250-275/505-525 stock. I bought this truck brand new. Free shipping for many products! Following up from previous question, here is the VIN 1GDG6H1BXYJ907917 and #s off the ECM, 09384681, sev. Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? 7.4 Vortec Performance Upgrades - BOOST YOUR ENGINE Or is it what get is all you get? Only tow rigs I have used to pull my Jeep with was this truck and my DD Driver 5.3 Tahoe. Distributors cap and rotor kit features brass inserts and stainless steel rotor springs,designed to provide the best possible fit to ensure maximum conductivity between the distributor towers and spark plug wires,prevents arc through and crossfire. We are running about 2-3 days on turnaround right now. 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? You might be able to run an L29 cam, but you will need to consult an engine builder. 7.4 and 8.1 vortec hp and tq ratings | Diesel Place