Thanks. Purchase a Chevy 454 crate engine online from JEGS High Performance. Buy your ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set at Amazon. Do you have identifying marks on the ECU? Yes, it definitely will. But like any stock engine, there was tons of power left to be squeezed out. These modifications will help to generate more horsepower without adversely affecting fuel efficiency, which will ultimately increase net mileage. 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. 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". Do you offer anything for the 5.3? But don't despair. A stock 12v ain't got **** on a BBC. 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? It specs out at 265 HP@4500 RPM and 340 ft/lbs of torque@3500 RPM. We set all the parameters in the PCM, so you will not have a way to make adjustments on your end. All rights reserved. No videos but your ECM is fairly easy to identify and replace. With our tuning, peak horsepower is at about 3500 RPM and peak torque is about 2500 RPM. This thing is weak as water. Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? Is it not the same motor from 96 to 2001. 1 cat is gone already and the other is gutted i am taking it off next week when i get a chance. Banks iDash: SuperGauge & DataMonster. The most important changes that are made have to do with spark advance, fueling, transmission shifting and torque management settings. See listing details. A restrictive or clogged air filter makes the engine work harder to breathe, which reduces efficiency. Whether your power boat is running boost or naturally aspirated, we have the correct performance parts for your application. It can be done fairly cheap , power for days and 15-20mpg, I repeat. Also, is shipping included both ways? The exhaust does not have CATS with dual to the muffler and single exit tailpipe. 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From my experience, the HyperTech programmer for those engines is pretty generic and does not make very many changes in the programming. The great thing about using a blow-though carburetor combination is the intercooling effect you get from the introduction of fuel. 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. This engine has two valves per cylinder and features multi-port fuel injection. Do you have any videos of how to locate and remove my ECM? We wanted to make sure the air/fuel and timing curves were spot on before running the supercharged monstrosity in anger. what does this do at emission inspections?? That just won't do. It debuted in 1970 as an upgrade of the 427 big-block V8 engine. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets. How To Add 70 Percent More Power to A Chevy 454 V-8. Injector type: US-CAR, saturated. To find out just how much the 30-year-old behemoth could muster, they took it to Westech Performances dyno room. Also how much benefit do you think I would gain by going aftermarket catback exhaust. You are using an out of date browser. 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. I plan on the injector and ignition work done in march. Don't know how tuning would work. a good set of headers help to. This ignition system upgrade will allow you to set your distributor for a little more timing advance. Also I have Thorley tri Y hearers on mine will that effect the tune? 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*. Yes we modify the shift patterns to hold the upper gears longer, your shift kit would not interfere or cause issues. 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 promise not to use your email address for anything but exclusive updates from the Power Automedia Network. In search of power, GM reverted to the big-block engine design, with a 454-cubic inch displacement. The 8.1 Vortec was produced to compete with Dodge's 8.1 Magnum V10, and Ford's V10 Triton engines of the time. Pace Performance Products in Ohio put together a decent upgrade. 49073 - Banks Power TorqueTubes GM P-series 7.4L 454 96-00, SPW7400 - UltraPower 7.4L Vortec Magnum Workhorse/Chevrolet Spark Plug Wires (1996-2000). After configuring a discharge tube and adding some race fuel, we slowly supplied boost to the boneyard big block. Other #s not sure what they are if theyre useful, 86DAFMM0017433PS, HDW # 16239740. Typical turn around is 3-4 days, sometimes quicker. We can send a pre-programmed ECU on core exchange. Buy in monthly payments with Affirm on orders over $50. 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. The state of California requires that this warning be posted for people purchasing products that reside in California. My question is you claim 40-55 hp gain on the 7.4l , and all the other tuners on the internet only claim 20-25hp gain, will I really see 40-55hp gain with stock engine, exhaust, and air filter? My next upgrade is going to be exhaust. 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?? Despite the impressive cooling powers of the carburetor, we were still concerned about the elevated charge temps going into the carburetor. Now, that poses the question: what would you shoehorn this big-block Chevy into? 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. The 454 Vortec is the last in a line of one of the most successful classic engines in GM history. Hot Rod And remember, thats all without touching the bottom end. Dedicated to making your Chevy Truck bad***. My question is that I have a 1998 7.4 parts truck. I own a 1998 Safari Trek 2830 P32 chassis with an L29 28'7" Class A RV Drivetrain it s completely OEM.. Dodge RAM 3.0 Ecodiesel Performance Upgrades Guide, Best Ford 6.7 Powerstroke DPF Delete Kit Upgrade. Learn more. "SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines. We can also take care of the TQ management for you. I have a uhaul topkick with the 7.4. 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. Apr 10, 2008 #5 M MyBoTy Veteran Member I do still have all the O2 sensors but would like to delete them if possible. He eventually figured it out. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! 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. For GM vehicles, the Vortec variant increased power by 60 horses. I have a 2000 3500 454. I don't drive the truck daily so could send my ECM to you for tuning My question is would this eliminate the SES light for the cats P0430/20 and air pump ?? Maybe I need to go by the dealer and test drive a diesel or another gasser so I have a comparison. 7.4 Vortec Specs Chevy based the 7.4 Vortec off their 454 big block engine, hence the name 454 Vortec. Buy your K&N PF-1000 Fuel Filter at Amazon! The heads, pistons, and intake are stock. I THINK I want a diesel until I look at the prices. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. We can tune stock or modified, not a problem. Jump to Latest Follow . Oxygen sensor modifications can be done. Really? Don't worry about what a camshaft may produce at 4000-5000 rpms in truck engines like this - YOU DON"T DRIVE THERE! Stronger shift points for towing and power. I want to install a cam while you have the ECU. I am of the same opinion that the UltraPower programming is going to be by far your best "bang for the buck". K&N fuel injection performance kit. I THINK I want a diesel until I look at the prices. Here is info from COMP Cams. 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. Forget the typical race-motor build up, Boneyard Boost was all about force feeding some tired, high-mileage workhorse we purchased for the paltry sum of $500 ($250 on half price sale weekend!). 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. The budget portion of the equation came from a 7.4L Gen VI big-block Chevy straight out of the local wrecking yard. This is a crew cab, 8 foot bed. 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. Having tried the things you already have, I am pretty confident the issue is the PCM. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? Unfortunately this is not something that we offer. (454 used only MAP) 2. I called Banks Power last week to try and find out what they recommend. 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. If I send in a functional pcm for my Suburban mentioned in last question whats the average turn around for it? Mark McNabb was a contributor at TopSpeed from 2013 to 2018. The Vortec 454 was touted as having substantially more power. Reading some of your responses I came across one with regards to a 1996. We can even modify these Chevy 454 rebuild kits to your specifications, giving your vehicle exactly what it needs for maximum performance. I tow a large fifth wheel trailer with RPMs between 1800 to 2500 typically. In an effort to further drop the inlet air temps, we installed a makeshift air-to-water intercooler. Im interested to know if you change the shift points or anything like that cause I have a shift kit in the transmission already. A cold air induction setup will feed the engine cooler and more oxygen-dense air. I am considering your tune for my motorhome. Buy your Big Autoparts Ignition Distributor Set DR474 DR331 at Amazon! If it does work what would do for pulling and climbing hills? Roller Cam, .483 Lift . That extra air going into your engine needs to get out somehow; installing a full aftermarket exhaust system like this is always good for more fuel economy, especially when combined with a freer-flowing intake. 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. The truck does not need to be emissions compliant. Nothing I was finding really listed ACTUAL upgrades. Turn around time is 1-2 business days. Their high performance cellulose glass media traps contaminants such as rust, dirt, scale and other foreign materials. For a plain jane Sierra, not bad in my opinion. When taken together, this fairly inexpensive approach can be good for noticeable gains in fuel economy. Would the retuned ECM provide any performance gains above what are present now? . 496 MAG Performance Parts Performance Applications Chevy / GM Trucks 1999 Crew cab dually, 454 vortec, AUTOMATIC. Every horsepower subtracted as a result of parasitic drag is one less horsepower that wont help your truck travel down the road. Inexpensive and fairly easy to install, a windage tray will help to keep oil in the sump where it's supposed to be and can even help to extend bearing life by keeping the rotating assembly in balance. 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. Performance. 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. If they were cheap enough, sure. New 2-Piece Intake Manifold w/Long Intake Runners 7. In addition to the powerful YSI supercharger, the kit included a cog-drive system to eliminate belt slippage under boost. All above engines equipped wit Hydraulic Roller Lifters. A few weeks ago I bought a very low milage 454 Gen. VI L29 Vortec engine with hydraulic roller. my ecm has to be replaced. Oct 25, 2004 Do you guys know anything about the L29 Vortec motor. 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. For a better experience, please enable JavaScript in your browser before proceeding. Following up from previous question, here is the VIN 1GDG6H1BXYJ907917 and #s off the ECM, 09384681, sev. $199.95. We can adjust for speedometer error. 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. Thanks. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. We tune the original black box PCM but do not do the 411 swap. 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. 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. 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. If powertrain performance projects and hardcore technical content are your interest, Power & Performance News is the publication designed for you. CAN YOU REALLY MAKE DECENT POWER WITH A SET OF PEANUT PORT BBC HEADS?. We set it for the best performance in all conditions, it is not user adjustable. At the relay the Orange wire is hot with 12 volts continually. This is only 1 of the many changes that we make with our programming to achieve great power gains. 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. We appreciate it but we only specialize in the big block engines. I am upgrading the fuel injectors with the new Bosch III's and the plugs and wires. PART NO. Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. Hello I have 2000 GMC k3500 Truck. 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). I'm interested in the available upgrades for the vortec 454. I've made several performance upgrades myself, but are always looking for something better. BBK Power Plus 80 millimeter Throttle Body for GM Vortech 305/350/454 for all BBK 1996-1999 GM Vortec 305, 350, 454 throttle bodies are designed to increase airflow and improve horsepower from between 7-12 HP depending on the vehicle and . Stage 1 Upgrade for Mercury 525 EFI. What sets us apart from the others? 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! 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 $. Topping the engine is a borrowed four-barrel Holley XP carburetor. If not can a non uhaul ecm be used (ie plugged into the current harness)? I have a vortec454 in a non smog az tow vehicle. I have a 1996 Suburban K2500 with the L29 engine and 4l80 trans. For this one, I would want you to send your PCM into us to be done. However, Chevy still offers the 454 big block V8 as a crate engine. 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. Is there a way you could tune that out completely or as much out as you possibly can? The Gray, the green with white strip and the black test grounded. 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. Vehicle Monitoring and data-logging like no other! 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. I heard these trucks have a torque management system does this computer give my truck back all its power? 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. Some of which are going with an upgraded ignition, headers, removing the cats and having the computer flashed to shut down the secondary O2 sensors. Is there any way I could send you that one as a core in return for one to work in my 2000? 800-417-4559 Jay, https://www.ultrarvproducts.com/UltraPower-GM-Workhorse-7.4L-(454)-Custom-Tuning. Overall Length: 3 inches, 74 mm. Truck is stock otherwise and runs good just looking for more out of it. Buy your Innovative Performance Chip/Power Programmer at Amazon! Mostly people saying to try this and try that. 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 can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. Switched to Mass-Air Flow. My car is GMC pick-up 7.4L 1998. it is manual transmission. Truck has k&n air filter, 2.5 inch exhaust (no cats), e3 spark plugs and 8.5mm plug wires. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. I recently ordered an ecm for a 7.4 vortec and was very impressed. Would you be able to tune this on a new computer so I can keep the original? Safely gain up to +35 HP and up to +5 MPG in fuel mileage in your vehicle by safely optimizing your air/fuel ratio and timing curve for increased efficiency! Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score 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. It is unlikely that the Vortec 454 accessories will clear the hood. I fought this truck with the cats deleted and air pump disabled. I list that this RV was originally equipped with a 4.63 rear gear ratio and a tire size of 225/70R19.5. 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. 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. do you think I could get more power with your ecm re-program?