The greater the power gains, the bigger the budget. watch out for chips as they just bump the fuel curve. Well, they can be had stupidly cheap, not counting the extra work it takes to remove the engine and then dispose of the lifeless RV. I have a 1996 Winnebago with a P30 chassis and a 454 75,000 miles and runs great. Install a high flow air filter and cold air induction intake. I won't change the exhaust or add a ring eating K&N. 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 $. We are unaware of any cam upgrades specifically for the L21. TQ with those modifications done. Please just leave in the order comments your requests to be done. Whether your power boat is running boost or naturally aspirated, we have the correct performance parts for your application. To others, the 7.4 Vortec 454 big-block was the perfect engine at the wrong time. If it does work what would do for pulling and climbing hills? Reading some of your responses I came across one with regards to a 1996. They have a high strength carbon steel housing and a high performance rolled seam that exceeds OEM pressure requirements. Prices increase after 2/28. Wiring is the same. The tune will definitely wake the truck up. I have a 2000 gmc k2500 with the l29 454. Thousands of satisfied customers have reported fuel economy increases as well as less transmission downshifting because of the increased horsepower and torque. The exhaust does not have CATS with dual to the muffler and single exit tailpipe. This cam is designed specifically for the TBI 350 small-block and specs at 194/214 degrees of duration at .050-inch tappet lift with .398/.442-inch lift. 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. 1997 gmc 3500 cc dually. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. Don't worry about what a camshaft may produce at 4000-5000 rpms in truck engines like this - YOU DON"T DRIVE THERE! 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. m) at 3200 rpm. Oxygen sensor modifications can be done. General Motors debuted the 7.4 Vortec in 1970, one year before emissions requirements were tightened and three years before the gas crisis hit with full force. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. We use the original black box PCM's. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? Whether the kit is intended for stock replacement or racing, various levels of compression will allow for improved performance with emphasis on top-end power and high RPM. Alright Jay! At this point the engine run well, with no code problems. 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. 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. How much will the customization cost me? FULL RESULTS-GEN 5 454 UPGRADE-STOCK PEANUT PORT HEADS. do you think I could get more power with your ecm re-program? as much as possible im going to do a cam exhaust and injectors and intake so my questions are what do you think my gain would be with your pcm and can it be piggy backed with a plug in tuner thanks matt, would i be able to get a retune if i add a cam after, and what is the turn around time, thanks. I had a 7.3 F250 about 8 years ago and I really think the ol Chevy would run with it or out run it. Power & Performance News is the source for news, tech and products that help you get more performance from your vehicle. The 1993-or-so design FEAD has been shown the clear the factory hood. I installed a K&N replacement are filter in the stock air box. 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. Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score Even stock we see impressive gains but even more so with the Banks PowerPack installed. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidaysareprocessed on thenext business day. If I order a ecm reprogram will this fix my speedometer error too?? Is the Vehicle Control Module an ECM by another name? Also I have Thorley tri Y hearers on mine will that effect the tune? The Vortec 454 was touted as having substantially more power. 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. 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. 496 cubic inches. Unfortunately this is not something that we offer. 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. The cooler charge air (plus tubing length and bends) dropped the peak boost pressure from 19.1 psi down to 17.7 psi. Bosch p/n: 0280155884. Naturally, the truck-based 454s were tuned for torque, so having nearly 500 pound-feet wasnt a big surprise. Buy your K&N PF-1000 Fuel Filter at Amazon! I've made several performance upgrades myself, but are always looking for something better. This left us with Mark 4, Gen V and Gen VI big blocks to choose from, any of which would work for this project. I borrowed a friends TBI 454 dually to pull my blazer one time and it impressed the **** outta me. cam with matching torque converter and headers would be easy. Please contact us directly to set that up at 800-417-4559. Buy in monthly payments with Affirm on orders over $50. And a k and n filter. They seem to be similar to those used in your RV work. Is it possible to upgrade the ECM on my 1994 Fleetwood Southwind Storm 454 TBI w/4L80E trans? We use cookies to ensure that we give you the best experience on our website. I read in earlier questions asked that you had stopped doing the earlier ones. As you can tell, it doesn't deliver much. We can also take care of the TQ management for you. Before adding boost, the boneyard big block was run in normally aspirated trim and produced 427 hp at 5,500 rpm and 476 lb-ft of torque at 3,900 rpm. I have a vortec454 in a non smog az tow vehicle. Can I reprogram on the fly as conditions change and performance needs warrant a change?? Straight Port Cylinder Heads 6. That represents a 70-percent increase in horsepower. Or if I pay to send in, is the return shipping included in the $495? Having tried the things you already have, I am pretty confident the issue is the PCM. Headers exhaust. 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. So if I have your tune done what is the turn around time sending my PCM to you? torque so it will definitely be able to hold the upper gears better when hill climbing and have improved acceleration. Just make sure to include that information in the order comments and we can make that happen for you :). 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/. If it is a 1998 then yes you can. Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. Would you be able to tune this on a new computer so I can keep the original? Is this enough information to create a tune or will you need more information? 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. Yes you are correct that there is torque management which "pulls" back power when taking off from a stop. Buy your ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set at Amazon. Do you have identifying marks on the ECU? Thanks for any help. Only a set of dyno headers and an electric water pump were different. Is it worth tuning a black box or worth changing to 411, I have headers ,cat delete, 19.5 five 0 injectors, and Pulling cam swap. Stock TBI 454 makes 230hp and 380tq so stock fuel pump is maxed out right off and a typical 454 will run better with a fuel pump upgrade even with stock chip. We are currently out of clean/painted cases for the PCM's. The issue with your tachometer would only be fixed if there is an actual issue with your PCM. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. What are your recommendations?? Performance computer re-calibration and a Custom High flow Billet Flame Arrestor that increases the maximum power by more than 25 HP* and 30 pounds of torque*. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. The Chevrolet 454-cubic-inch, or 7.4-liter, V-8 engine was an extremely powerful gas guzzler that should have remained obscure after the 1973 oil crisis. The intercooler did indeed drop the inlet air temps before the carburetor from 248 degrees to 111 degrees and the cooler charge dramatically improved the power output. When reliability and performance can't be compromised, you want TXL Wire - not the inexpensive primary wire you find in other harnesses; High strand count copper and high-quality insulation makes for high abrasion resistance and easy routing. Thanks to a maximum impeller speed of 65,000 rpm (racers go even higher) and a peak efficiency rating of 78%, the Vortech YSI was capable of supporting over 1,200 hp at 30 psi. We removed the factory EFI injection, and replaced it with simple carburetion. Some differences are: 1. merci. 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). We set all the parameters in the PCM, so you will not have a way to make adjustments on your end. Free shipping. Thank you for any information you could give me. Dont buy a camshaft because someone claims its fantastic; instead, purchase one because you know it will fit your vehicle and give you the performance look you desire. BBK Performance Parts 1710-XC GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. My question is what cam you would recommend for towing? 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. If I send yall Parts list of what kind of cam, injectors, pistons, etc. Is this doable? Find many great new & used options and get the best deals for BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD at the best online prices at eBay! We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. As long as you don't have any emission systems removed, you will pass without any issues. 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. Hi Warren, that is definitely something we can tune for. It went through different upgrades over the years finally ending with the 454 Vortek which stopped production in 2001. Here is info from COMP Cams. I've noticed a significant performance uptick, but it seems to fall flat in the upper mid-range, almost seems like it could use a MSD multi spark discharge, I don't know, but I'm considering having a dyno test to see what is happening. The Vortec 8100 (RPO L18) is a V8 truck engine. The K&N raises the horsepower of your 5.7 Vortec crate engine by 45 percent. Turn around time is 1-2 business days. Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. 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. Truck has k&n air filter, 2.5 inch exhaust (no cats), e3 spark plugs and 8.5mm plug wires. The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. The stock injectors are fine for our performance tuning. 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 To further improve power, we also upgraded the stock hydraulic roller camshaft with an XM284HR from COMP Cams that offered .547 lift, a 230/236-degree duration split and 112-degree lsa. What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? Following up from previous question, here is the VIN 1GDG6H1BXYJ907917 and #s off the ECM, 09384681, sev. This thing is weak as water. 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. Not only did the cam swap net an additional 52 horsepower (peak-to-peak), but the gains exceeded 80 hp higher in the rev range. The valve train is OHV with two valves per cylinder and multi-port fuel injection for fuel induction. We do not go further back than 1996 (OBD2) modules, sorry. I want to install a cam while you have the ECU. Eric, we can program for EGR delete, cost would be $ 495.00 and would also include the performance tune . Thinner oil drags less on internal engine parts, helping the engine to spin more freely and run more efficiently. When you purchase, just let us know any modifications or requests and we can accomodate. Do a 12 swap and be done. Injector type: US-CAR, saturated. Technical Specifications: No filter cleaning required for up to 100,000 miles. The old cast-iron cylinder heads and low-rise intake manifold were dumped in favor of some aluminum PowerOval 280 heads from Trick-Flow with upgraded valvetrain and a Summit single-plane intake manifold. If you continue to use this site we will assume that you are happy with it. We can tune stock or modified, not a problem. 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. Typical gains are 40-45 horsepower and 45-50 lb-ft torque, 4. 7.4 chevy engine in georgia boy pursuit motorhome. If I send in a functional pcm for my Suburban mentioned in last question whats the average turn around for it? Pindar Yessir! 98 Single Rear Wheel 3500 7.4 Vortec. That said, the main internal differences between the L29 and L21 is that the L21 has forged pistons and crankshaft. Thanks, WILL THE 2000 1 TON DULLY I HAVE STILL PASS CAL SMOG WITH THIS TUNE UP EMC. Is there any way I could send you that one as a core in return for one to work in my 2000? If not can a non uhaul ecm be used (ie plugged into the current harness)? My question is that I have a 1998 7.4 parts truck. The Muscle Automobile Period had come and gone before the 7400 series debuted. 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. Headers suggested. 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. I have a 2000 OBS Chevy quad cab with a 454 Vortec. Don't know how tuning would work. If so, is that the unit that sits above the radiator of a 2000 Itasca Suncruiser V32 w/ L29 7.4l (454ci) Vortec? Both Vortec 7400 heads (the '98-'01 12560241 and the '96-'01 10141279) have about 100cc chambers. No where near diesel power my ass. way stronger than a stock 12v, 6.5, & 7.3 powerstroke by far!!!! Gasoline engines do not require different settings for different conditions like a diesel engine does. 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. I have a 1996 C3500 crew cab dually with a 7.4. You may also like. To find out just how much the 30-year-old behemoth could muster, they took it to Westech Performances dyno room. It was bone stock 2x4 extended cab dually. We have a complete Banks Power System and Banks Air Flow. Dec 18, 2007 . Vehicle Monitoring and data-logging like no other! 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.
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