454 vortec performance upgrades

I have a few questions so bear with me here. While we do get reports back of fuel economy gains, that is something we can not guarantee as there are just too many variables that can affect an RV's fuel economy. Though larger than the previous 7.4L models, the unique 8.1L could not utilize the amazing array of performance parts available for the previous three conventional big-block models. Originally Posted by PonyKiller87 Ok, sounds just like swapping over the 96-00 vortec 350 to the 0411 as far as the wiring goes. I just bought this 97 suburban 4wd with the bbc. Also the torque management. Can I tune it myself later with my own tuner or is it still a black box like the oem? 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. From my experience, the HyperTech programmer for those engines is pretty generic and does not make very many changes in the programming. No videos but your ECM is fairly easy to identify and replace. Programmers. Apr 14, 2016. 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. Free shipping for many products! Probably cause no cats. I have a 2000 7.4 with a bigger cam cold air kit dual exhaust better mass air flow senser and roller tip rockers can u tune that as well or do you just do stock stuff, I have a 99 k 3500 Chevy 1 ton with 454 5 speed.will your computer tune work in my truck and can I expect 40+hp gain? If you continue to use this site we will assume that you are happy with it. PART NO. 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. Please just leave in the order comments your requests to be done. It wasnt the best moment to put out a big cubic inch big block designed for performance vehicles, but the Chevy 454 made an impact. Just worth mentioning. K&N fuel injection performance kit. I have a 1996 Winnebago with a P30 chassis and a 454 75,000 miles and runs great. 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 $. Step 2 Install a high flow air filter and cold air induction intake. Or is it what get is all you get? 7.3 is 250-275/505-525 stock. 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. Elgin Industries set of (16) Hydraulic Roller Valve Lifters compatible replacements for Big Block Chevy GMC & Pontiac engines. 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. We can tune stock or modified, not a problem. The Chevrolet 454s of the 1970s were the most powerful, with the LS5 producing approximately 360 horsepower and the LS6 generating around 450 horsepower. 3. http://www.cumminsdieselspecs.com/cummins_timeline.html, http://www.internationalpowerstroke.com/timeline.html, http://www.duramaxdieselspecs.com/compare_duramax.html, Tow rig Suspension and Axle upgrades questions (4th Gen Dodge). 4.56 might be abit tall. We modify this so that it is still "safe" but definitely wakes the truck up. You can definitely hold on to your PCM, that is not an issue. 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. I didnt see anything on the site but that doesnt mean I saw everything. O-rings: Top and bottom, 14.5 mm - Viton. This 1-ton dually truck is used for hauling a large slide in camper and atv trailer. The main improvements will be improved shifting and overall more torque to pull hills. Thanks. my ecm has to be replaced. Make use of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. Prices increase after 2/28. I assume the module is a pre-programmed ECM chip that replaces the stock ECM chip. Oil tends to collect on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons) and reducing horsepower through parasitic drag. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! 4 Bolt Main GM Factory Vortec, Edelbrock's Performer Multi-Point EFI. 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. This is a crew cab, 8 foot bed. 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? The great thing about using a blow-though carburetor combination is the intercooling effect you get from the introduction of fuel. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. I have a 1996 Suburban K2500 with the L29 engine and 4l80 trans. Also how much horse power and torque do these motors have stock? Any thoughts from you technical guys? a good set of headers help to. If you would like to place your order feel free to give me a call at 800-417-4559. However, this engine was developed mostly for large towing ability for CAFE-exempt passenger cars, so there is still room for improvement. As long as you don't have any emission systems removed, you will pass without any issues. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. 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. Most generic tuners only change very basic parameters within the computer, whereas UltraPower Tuning changes approximately 400 parameters including both engine AND transmission settings. The cooler charge air (plus tubing length and bends) dropped the peak boost pressure from 19.1 psi down to 17.7 psi. 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? 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). Hi Warren, that is definitely something we can tune for. No where near diesel power my ass. way stronger than a stock 12v, 6.5, & 7.3 powerstroke by far!!!! If you had the proper tuning software, you could tune it yourself later. Chevrolet Performance 10141280 Part Number: 809-10141280 Chevrolet Performance L29 Vortec Cast Iron Cylinder Head L29 Vortec Cast Iron Cylinder Head 1991-2000 Big Block Chevy Gen V/VI Engines Only Bare Head Sold Individually View Details $756.99 Ships on 03/02/23 FREE Shipping Lowest Price Guarantee Add To Cart Yes, we can resolve your issues. For GM vehicles, the Vortec variant increased power by 60 horses. We will set the tune up based on your modifications and requests. I plan on a couple of cross country trips this summer before the Banks PPB install, so, should I wait for the tune until after the Banks install or do the tune this year? There is a small red wire that has never been connected to anything. Please contact us directly to set that up at 800-417-4559. Do you have identifying marks on the ECU? We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. It will not void your factory warranty, and does not modify any emissions systems. JavaScript is disabled. And what is the final cost of your ECM. Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? The old, weak 240 HP 454 is every bit as. Is the pcm that is used a 411? The Vortec 454 was touted as having substantially more power. 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? BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built . What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? It is a redesigned Chevrolet Big-Block engine and was introduced with the 2001 full-size pickup trucks. I have Bosch Gen III injectors; Volant Air intake; and 3 exhaust. Other #s not sure what they are if theyre useful, 86DAFMM0017433PS, HDW # 16239740. I THINK I want a diesel until I look at the prices. What type of gains could I expect with a tune for this? We are running about 2-3 days on turnaround right now. The General Motors 7400 is the name given to a 7.4-liter Vortec engine produced by GM from 1996 until 2001 as a truck engine. Cats have been removed as well as smog pump. The terms ECM, PCM, and VCM are all used to describe the engine computer by various manufacturers, yours is located above the radiator . If it does work what would do for pulling and climbing hills? We would recommend speaking directly with a camshaft manufacturer to determine the best for your particular engine. 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. Using 3.5-inch aluminum tubing from CXRacing, we configured the intercooler between the YSI supercharger and the blow-through carburetor bonnet. 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). The tuning is custom to each vehicle depending on calibrations, modifications and any special requests. The tune will definitely wake the truck up. The valve train is OHV with two valves per cylinder and multi-port fuel injection for fuel induction. Full Forum Listing. 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 also took the liberty of installing a Race-Port blow-off valve from Turbo Smart. Engine is in stock configuration with no upgrades. The budget portion of the equation came from a 7.4L Gen VI big-block Chevy straight out of the local wrecking yard. These 454 7.4L engines tend to respond pretty well to camshaft changes with good grinds that are designed to produce low and mid-range rpm torque increases. 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. Eric, we can program for EGR delete, cost would be $ 495.00 and would also include the performance tune . 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. Oxygen sensor modifications can be done. I THINK I want a diesel until I look at the prices. Both Vortec 7400 heads (the '98-'01 12560241 and the '96-'01 10141279) have about 100cc chambers. Is there any way I could send you that one as a core in return for one to work in my 2000? I have a 2000 3500 454. 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. The most important changes that are made have to do with spark advance, fueling, transmission shifting and torque management settings. As you can tell, it doesn't deliver much. I like my shift points where they are. Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. We can do the tune now with the Banks kit taken into consideration for down the road. 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. When it shows 55 MPH your actually going about 57 to 58 MPH. Use for stock replacement OEM original equipment. Headers suggested. In addition to the powerful YSI supercharger, the kit included a cog-drive system to eliminate belt slippage under boost. 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. 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. So if I have your tune done what is the turn around time sending my PCM to you? It is an all-iron engine (block and heads . The previous owner had the engine rebuilt in 2012 and tells me they installed an RV cam but I am not sure which one. A windage tray, which is cheap and simple to install, can help to keep oil in its proper location by keeping the rotating assembly balanced. Since the cat removal shift points have been wonky. I sprayed starter fluid in the tbi and it fired up for a few second. This is a lie. They left all the original parts in place like the two-barrel carburetor and dilapidated ignition system. 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. We use cookies to ensure that we give you the best experience on our website. Aftermarket hood are hit and miss, we did find that the integrated airbox arrangement of the Suncoast hood played havoc with clearances that were confirmed to fit within the factory underhood bracing. youll have to stick to a torque cam because of the computor needs vacuum (speed density) headers will help greatly. . It may not display this or other websites correctly. 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. Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. For this test, the motor was configured with an Edelbrock RPM Air Gap intake and Holley 750 carburetor. Now, that poses the question: what would you shoehorn this big-block Chevy into? Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. I just ordered an ECM for my 7.4 and was curious on if you guys did this tuning on the 5.7s? Turn around time is 1-2 business days. After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. Overall Length: 3 inches, 74 mm. The C/K 3500's standard engine is a 5.7-liter V8 OHV 16-volt FI engine, and the 454 engine comes as an optional upgrade. Vise grip, needle-nose and standard pliers. Would this work on 1996 7.4L L29? As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. Some differences are: 1. $119.95. Is this doable? 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. Buy your Big Autoparts Ignition Distributor Set DR474 DR331 at Amazon! Please see our shipping terms for more information. When you buy a single component or a complete kit, like a camshaft, you must ensure that it is suitable for your car. If you want to send your PCM in that you know is functional, that is the best way to do it. and will it improve my over all power? 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. Just need a working substitute, no enhancements really needed. The UltraPower ECM performs very well on both stock engines and ones that have been upgraded with other modifications. can you tune it Perform with these upgrades, We would like to have ordered the 7.4 custom tune ,but appearantly you are out of stock at the moment.Is there any time frame when you will have more modules.I would like to send you mine but I need my vehicle.Also we would like to have had the reasonable price. We can even modify these Chevy 454 rebuild kits to your specifications, giving your vehicle exactly what it needs for maximum performance. 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. Some parts are not legal for use in California or other . We've had a lot of issues with 1996 & 1997 PCM's so for the moment we are not tuning those. $399.99. I wouldn't mind an EGR delete for the part throttle improvement and a cleaner intake, but mostly I would like to keep everything else functioning, I am looking for more torque below 3,000 rpms, ideally in the 1500-2500 range, because almost all of my driving is in that range. That is the difference between cookie-cutter and custom! I straight wired it to test it and it will run. . We can tune it if you can build it :). Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? We are not able to assist in providing this PCM. I do still have all the O2 sensors but would like to delete them if possible. I know they were installed in trucks from 96- 00?. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets. We immediately checked the latest 8.1L off the list due to lack of availability and parts cross over. Hello I have 2000 GMC k3500 Truck. Yes we modify the shift patterns to hold the upper gears longer, your shift kit would not interfere or cause issues. Im also trying to get more out of this engine without tearing into it so I was just hoping this fixed my gauge as well. 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". 7.4 Vortec Specs Chevy based the 7.4 Vortec off their 454 big block engine, hence the name 454 Vortec. We do not have a hard and fast rule on core returns for the UltraPower programming ECM's as long as it is in reason. The GM 7.4L UltraPower ECM has long been the ultimate performance modification you can make to your GM 7.4L powered RV or truck with the highest power gains on the market! Every horsepower subtracted as a result of parasitic drag is one less horsepower that wont help your truck travel down the road. If you are placing an order to ship outside the United States, Shipping Insurancewill be required and added automatically at checkout. If you send us your PCM, our turn around is usually 1-2 days. do you think I could get more power with your ecm re-program? Thanks. In search of power, GM reverted to the big-block engine design, with a 454-cubic inch displacement. I fought this truck with the cats deleted and air pump disabled. Fuel pump doesn't run. Hot Rod decided to bolt up some typical speed parts. If you can supply me with your VIN and any part #'s that are on the ECM I can do some research. 2. Gains with the modifications you have done would be around 45 HP/ 45 TQ. If I send yall Parts list of what kind of cam, injectors, pistons, etc. . Is there anything to be gained within my parameters? 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. 800-417-4559 Jay, https://www.ultrarvproducts.com/UltraPower-GM-Workhorse-7.4L-(454)-Custom-Tuning. But don't despair. 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. Obviously different, but I still think the 454 has more to offer. Our typical turn around time is 2-3 business days. Thinner oil drags less on internal engine parts, helping the engine to spin more freely and run more efficiently. Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! 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. The K&N raises the horsepower of your 5.7 Vortec crate engine by 45 percent. I am of the same opinion that the UltraPower programming is going to be by far your best "bang for the buck". Performance. I have a 2000 OBS Chevy quad cab with a 454 Vortec. This thing is weak as water. Without going into the engine, they make a supercharger kit for it, I know whipple use to. The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. Windage trays are thin, sheet metal plates that bolt to the bottom of the main caps and act as a barrier between the oil in the pan and the crankshaft counterweights. See listing details. Also how much benefit do you think I would gain by going aftermarket catback exhaust. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. 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. I bought this truck brand new. Here is info from COMP Cams. With the intercooler assembly in place, we once again ran the blown big block in anger with amazing results. I have the 411. $199.95. How To Add 70 Percent More Power to A Chevy 454 V-8. Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. These Chevy 454 Vortec engines made 290 horsepower and 410 lb-ft. Chevy 454 HO Crate Engine Vortec 7400 engines were the final version of the 454 used in production vehicles or trucks. This ignition system upgrade will allow you to set your distributor for a little more timing advance. To allow the motor to rev cleanly to 6,000 rpm under boost, the cam upgrade was teamed with a new set of beehive valve springs. We appreciate it but we only specialize in the big block engines. 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. 496 MAG Performance Parts Performance Applications Chevy / GM Trucks We will safeguard your e-mail and only send content you request. All other modifications are going to be expensive, labor intensive and still not necessarily yield the same results. 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. I plan on the injector and ignition work done in march. 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. Only a set of dyno headers and an electric water pump were different. This is only 1 of the many changes that we make with our programming to achieve great power gains. With the baby stock cam they made 290hp and 415 ft lbs of torque. For a plain jane Sierra, not bad in my opinion. TQ with those modifications done. 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. Even stock we see impressive gains but even more so with the Banks PowerPack installed. HotCars covers all things automotive: the latest auto news and informative reviews on the car, pickup truck and motorcycle industries. Oil collects on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons), reducing horsepower through parasitic drag. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. $360.56. 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. We can send a pre-programmed ECU on core exchange. Later i want to install the banks PPB 49070 package on this motorhome next year. Do you still tune the 96 ecm? At this point the engine run well, with no code problems. It is located on top of the radiator support and has 4 connectors going into the back of it. I've made several performance upgrades myself, but are always looking for something better. I tow a large fifth wheel trailer with RPMs between 1800 to 2500 typically. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. 7.4 chevy engine in georgia boy pursuit motorhome. Yes, we can tune your engine for more power, doesn't matter what type of transmission. It would be a good idea to re-tune for the Banks and injection systems. I read in earlier questions asked that you had stopped doing the earlier ones. 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.

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