Naturally, the truck-based 454s were tuned for torque, so having nearly 500 pound-feet wasnt a big surprise. He eventually figured it out. 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. Apr 9, 2008 #4 7 70SSman Veteran Member Aug 11, 2005 134 Amston, CT, USA 100$ with low miles. Install an aftermarket windage tray in your engine. I know that my question is very reduntant but I need to ask it .I pull a trailer and want a little more tow po1wer. We only specialize in the big block engines. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. Are the tunes generic or do you change different things for different people? So I have a 98 K3500 with the 7.4L and I use it mainly for hauling, but I have began to daily it. Based on experience, we have had good results with Comp Cams 212/218 hydraulic roller camshaft. 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. 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. 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. Cost would be $495. 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. How To Add 70 Percent More Power to A Chevy 454 V-8. No where near diesel power my ass. way stronger than a stock 12v, 6.5, & 7.3 powerstroke by far!!!! It was bone stock 2x4 extended cab dually. Check the make, year, and model of your car to see if the VIN number is available. Thanks. I have had a hard time finding much of anything for these engines. Yes, this would be the compatible ECM with your VIN and part #. high flow intake elbow, filter and MAF 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. Hello! We appreciate it but we only specialize in the big block engines. Will the UltraPower tune, give me the "best bang for my buck" performance increase? Your email address will not be published. The UltraPower ECM performs very well on both stock engines and ones that have been upgraded with other modifications. 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. I fought this truck with the cats deleted and air pump disabled. This left us with Mark 4, Gen V and Gen VI big blocks to choose from, any of which would work for this project. "SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines. 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. You would see a nice gain in power, on your 1997 we generally pick up about 30 horsepower and 35 lb-ft torque. Is there any way I could send you that one as a core in return for one to work in my 2000? I would think that u-haul did not use their own ECM. Use a set of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. Although Chevrolet doesn't specifically recommend it for this engine, the extreme slipperiness of a full synthetic will allow you to run a thinner weight oil without worrying about undue engine wear. 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 . 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. I won't change the exhaust or add a ring eating K&N. You may also like. 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. 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. 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. There is a small red wire that has never been connected to anything. Will this correct my RPM gauge issue? Truth be told, Vortech offered a number of Maxflow Aftercooler systems but we selected an intercooler core we had on hand for testing. It is an all-iron engine (block and heads . I have a uhaul topkick with the 7.4. Is this doable? Wiring is the same. Feel free to call me with your vin # handy if you would like to get your order in. I am upgrading the fuel injectors with the new Bosch III's and the plugs and wires. FULL RESULTS-GEN 5 454 UPGRADE-STOCK PEANUT PORT HEADS. 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. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. At this point the engine run well, with no code problems. . WARNING: Products may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. 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. Hi Warren, that is definitely something we can tune for. 1999 Crew cab dually, 454 vortec, AUTOMATIC. This engine has two valves per cylinder and features multi-port fuel injection. We can also adjust your speedometer to be correct. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? Return shipping is included , you are responsible for shipping to us , however if you choose the "core charge" and order the ECM , we can provide a return shipping label for your core and deduct from the core refund. Yes, as long as it is a "J" (8th digit of the VIN) Vortec 7.4L, we can tune it. After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. I have a 98 C-3500 dually with a Vortec 454. The valve train is OHV with two valves per cylinder and multi-port fuel injection for fuel induction. Prices increase after 2/28. Hello I have 2000 GMC k3500 Truck. For more information, visit www.P65Warnings.ca.gov, NOTICE: Fororders outside of United States. What type of gains could I expect with a tune for this? The main improvements will be improved shifting and overall more torque to pull hills. 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. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidaysareprocessed on thenext business day. We can do the tune now with the Banks kit taken into consideration for down the road. Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? If you don't mind a "dirty" PCM case then we can take care of an order for you. The upgraded Vortec 7400 is a 7.4L V8 OHV 16V-volt FI engine. The 1993-or-so design FEAD has been shown the clear the factory hood. The old, weak 240 HP 454 is every bit as. And what is the final cost of your ECM. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. They said they no longer support my RV and had no parts available. Eric, we can program for EGR delete, cost would be $ 495.00 and would also include the performance tune . That model of 454 is alot diffrent then gen 1..It wont take a normal cam and theres some other diffrences that kinda limit what can be done to it.im sure someone will chime in with specifics Yes, it's a OE roller camshaft block and 1 piece gasket crank. Yes, we tune for 87 octane unless a higher octane is requested. Really? Yes, we can do that. vortechsuperchargers.com. And performance tune? The Vortec 454 was touted as having substantially more power. We are not able to assist in providing this PCM. 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 ?? 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). Right now I have a CAI, 2" full length headers, 3" dual exhaust and EGR delete. With the shut downs due to the virus, our normal service company that does that for us is closed. Also the torque management. 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. We tune the original black box PCM but do not do the 411 swap. Yes, we could accept the PCM from your '98 as the core. Is the Vehicle Control Module an ECM by another name? K&N fuel injection performance kit. That represents a 70-percent increase in horsepower. 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! The K&N raises the horsepower of your 5.7 Vortec crate engine by 45 percent. The budget portion of the equation came from a 7.4L Gen VI big-block Chevy straight out of the local wrecking yard. Vortech supplied a pulley combination that included an 80-tooth crank pulley and 32-tooth blower pulley which provided a drive ratio of 2.5:1. Buy your Painless Performance 60211 Standard Length MPFI Harness for 1996-2000 GM Vortec 7.4L V8 at Amazon! Or is it what get is all you get? It was the same size as the outgoing 7.4 L V8, but got a boost in power and more towing capacity. will i notice anything? I am of the same opinion that the UltraPower programming is going to be by far your best "bang for the buck". . I am doing a full engine swap from a damaged motorhome to my older motorhome. what features will i gain with this new unit. Programmers. cam with matching torque converter and headers would be easy. 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. I have now disassembled the entire engine (except the crank and pistons) to check that everything looks good, remove all the dirt and grease and to prepare it for a rebuild. I think they were made before Chevy started using real tornados. 4.56 might be abit tall. The tuning alone will be the single biggest change you can make to improve power and throttle response. It is bone stock except for tow mirrors and Kodiak door handles on all 4. If product is incorrect for the provided VIN we will contact you to revise order. We would reprogram yours and put it in a new case so it looks nice! I know they were installed in trucks from 96- 00?. 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. We can adjust for speedometer error. We would just need to know the tire size you are running and if the rear gear ratio was ever changed from factory. Is it not the same motor from 96 to 2001. 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). During its five years on the market, the 7400 was employed in 26-foot U-Haul trucks for commercial purposes. It went through different upgrades over the years finally ending with the 454 Vortek which stopped production in 2001. Heads, intake and headers would definitely wake it up. Thanks. I have a 2000 OBS Chevy quad cab with a 454 Vortec. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets. I was interested in your tune for this engine and was wondering what your best guess on the horse power / toque gains would be. Mostly people saying to try this and try that. The single core from CXRacing featured 3.5-inch inlet and outlets and had been tested previously at over 1200 hp and 25 psi. Without going into the engine, they make a supercharger kit for it, I know whipple use to. 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". Even stock we see impressive gains but even more so with the Banks PowerPack installed. This is a lie. What sets us apart from the others? This thing is weak as water. 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. Switch to a lightweight synthetic oil. Yes that would be fine, you would just need to call in to our service department and schedule a date :). 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? Yes, we can tune your engine for more power, doesn't matter what type of transmission. Reasons to buy: At the relay the Orange wire is hot with 12 volts continually. How much will the customization cost me? Thank you. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! As long as the engine is well maintained, reliability is not affected. Your vehicle is not compatible. The problem with making more power is that cost and performance often go hand in hand. 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. Performance Street, great low to mid-range. Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. what does this do at emission inspections?? Roller Lifters 5. Switched to Mass-Air Flow. This camshaft provides more lift and longer duration using the 10-12 Manifold vacuum. Just need a working substitute, no enhancements really needed. 7.3 is 250-275/505-525 stock. My question is what cam you would recommend for towing? If I order a ecm reprogram will this fix my speedometer error too?? Vise grip, needle-nose and standard pliers. Some parts are not legal for use in California or other . The 454 Vortec is the last in a line of one of the most successful classic engines in GM history. If not can a non uhaul ecm be used (ie plugged into the current harness)? How to Get More Horsepower From a 360 dragster engine image by Robert Young from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. Does this computer hav egr delete programmed into it. Engine is in stock configuration with no upgrades. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. Do you have identifying marks on the ECU? Change to a synthetic oil that is light-weight. The greater the power gains, the bigger the budget. If you are placing an order to ship outside the United States, Shipping Insurancewill be required and added automatically at checkout. Thank you. Why a motorhome? It's a nice cam for a 454 big block chevy engine that runs with 1500-6500 RPM Range. Or if I pay to send in, is the return shipping included in the $495? Oct 25, 2004 Do you guys know anything about the L29 Vortec motor. Mar 20, 2011 #4 M MyBoTy Veteran Member Feb 9, 2002 1,567 Lubbock, Texas USA 5. We do not go further back than 1996 (OBD2) modules, sorry. 16238212. The cooler charge air (plus tubing length and bends) dropped the peak boost pressure from 19.1 psi down to 17.7 psi. 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. Install a high-flow air filter and a cold air intake. I have a 2000 OBS Chevy quad cab with a 454 Vortec. 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. Best, least expensive way to get more power out of this engine is with our custom tune. Headers suggested. Sequential-Port Fuel Injection (454 only had 2 Throttle Body Injectors) 3. At times I get a dtc for bank 1 and 2 too rich. Vehicle Monitoring and data-logging like no other! Is it actually running at that RPM or just showing that? You can definitely hold on to your PCM, that is not an issue. I dont have the 2000 VIN only the VIN from my 1995. Seems like it's lacking power towing my boat. The tire are one size larger than stock to the speedometer is off a little. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. I didnt see anything on the site but that doesnt mean I saw everything. You might be able to run an L29 cam, but you will need to consult an engine builder. It is quite a noticeable difference! Pindar 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. Engine Hotrodders' Lounge Body - Exterior Transmission - Rearend . 1996 c3500 dually 7.4 with 5 speed. The 454 HO crate engine boasts 438 HP and 500 lb-ft of torque. You can source the 454 HO directly from Chevrolet. Full Forum Listing. 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. This project will also let customers know if spendintg approx $2300 on all these upgrades is going to give them the results they need from their big block engines. The 4300 was GMs first Vortec-engine V6, released in 1986 and designed for trucks. 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. Alright Jay! 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. We set all the parameters in the PCM, so you will not have a way to make adjustments on your end. We have a complete Banks Power System and Banks Air Flow. Not sure if you have any other issues causing low power though because it should outperform the 5.7L, especially towing. Reading some of your responses I came across one with regards to a 1996. Unfortunately this is not something that we offer. We set it for the best performance in all conditions, it is not user adjustable. Do you still tune the 96 ecm? is this unit ready for plug and play. I filled out a form and sent to COMP Cams to see what they recommend and sent an e-mail to Blackbear to see what cams they had experience with since I will need to PCM tune redone. The engine receives cooler, more oxygen-dense air through a chilly air induction system. I installed a K&N replacement are filter in the stock air box. Anything that will help the performance. Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. With the baby stock cam they made 290hp and 415 ft lbs of torque. Configured with our pulley combination, the YSI spit out a peak boost pressure of 19.1 psi where the boosted big block produced 791 hp and 713 lb-ft of torque. 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? JavaScript is disabled. If you are wanting to keep the truck otherwise stock, the tuning would be your best upgrade to boost the performance and it would definitely help the low end where you are wanting it to. This is a stock style setup, featuring a 4.000" stroke and bore sizes ranging from 4.250" (standard) to 4.375". Yes, all gains listed are with 87 octane gas. 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. I have a 2000 3500 454. Would this work on 1996 7.4L L29? As long as you don't have any emission systems removed, you will pass without any issues. 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. Oil collects on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons), reducing horsepower through parasitic drag. 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. I'm saving up for the banks power pack system. . If you want to take full advantage of the cam swap then a custom tune will be needed to address that. Use for stock replacement OEM original equipment. TQ with those modifications done. I list that this RV was originally equipped with a 4.63 rear gear ratio and a tire size of 225/70R19.5. Stage 1 Upgrade for Mercury 525 EFI. torque so it will definitely be able to hold the upper gears better when hill climbing and have improved acceleration. My question is that I have a 1998 7.4 parts truck. In 2001, production of the 7400 line was discontinued. m) at 3200 rpm. I sprayed starter fluid in the tbi and it fired up for a few second. The Chevrolet 454s of the 1970s were the most powerful, with the LS5 producing approximately 360 horsepower and the LS6 generating around 450 horsepower. All above engines equipped wit Hydraulic Roller Lifters. Their high performance cellulose glass media traps contaminants such as rust, dirt, scale and other foreign materials. That being said, the threads on the net are pretty old. This ignition system upgrade will allow you to set your distributor for a little more timing advance. Apr 14, 2016. 7.4 chevy engine in georgia boy pursuit motorhome. What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? Maybe I need to go by the dealer and test drive a diesel or another gasser so I have a comparison. All rights reserved. These modifications will improve net mileage without sacrificing power, resulting in better overall mpg. We have no issues with tuning a higher mileage engine as long as it is in good running condition. I have a 2000 GMC school bus with the L21 7400 motor. No videos but your ECM is fairly easy to identify and replace. 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? Every horsepower subtracted as a result of parasitic drag is one less horsepower that wont help your truck travel down the road. Yes, we can resolve your issues. It will be plug and play. Does this upgrade have a negative or positive impact on engine life? A cold air induction setup will feed the engine cooler and more oxygen-dense air. The Vortec enhancements simply allowed GM to pass smog at a higher RPM. 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. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. The great thing about using a blow-though carburetor combination is the intercooling effect you get from the introduction of fuel.
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