If you had the proper tuning software, you could tune it yourself later. Et si je devrai faire recalibrer mon ecm? Even stock we see impressive gains but even more so with the Banks PowerPack installed. oh, by the way, this is a low mileage engine, single owner and I have taken excellent care of this truck. Purchase a Chevy 454 crate engine online from JEGS High Performance. Reference core exchange, what is the time limit for you to receive the exchange? Also I want to send you guys mine as core but I wanted to get yours first so Im not without my truck and if something goes wrong I can plug my factory one back in, so can I wait to send mine till after I get yours? K&N Performance Fuel Filters are built for high flow rates and capacity while they provide outstanding filtration. If so, is that the unit that sits above the radiator of a 2000 Itasca Suncruiser V32 w/ L29 7.4l (454ci) Vortec? 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). Following up from previous question, here is the VIN 1GDG6H1BXYJ907917 and #s off the ECM, 09384681, sev. If you send us your PCM, our turn around is usually 1-2 days. Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score 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. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. We are not able to assist in providing this PCM. The great thing about using a blow-though carburetor combination is the intercooling effect you get from the introduction of fuel. 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. 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. I was interested in your tune for this engine and was wondering what your best guess on the horse power / toque gains would be. What sets us apart from the others? The tire are one size larger than stock to the speedometer is off a little. Yes, we can do that. Check out their web sight Bankspower.com Based on experience, we have had good results with Comp Cams 212/218 hydraulic roller camshaft. The main improvements will be improved shifting and overall more torque to pull hills. PART NO. Can you guys tune that ecm? We can adjust for speedometer error. Performance. Stronger shift points for towing and power. The old, weak 240 HP 454 is every bit as. 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. It is unlikely that the Vortec 454 accessories will clear the hood. It gets you an EGR blockoff plate for the Vortec 4.3/305/350 engines. My goal is to improve torque and trans efficiency then MPG. Build your own custom newsletter with the content you love from Street Muscle, directly to your inbox, absolutely FREE! I am considering your tune for my motorhome. We gain on average 45-50 horsepower and 50 ft. lb. The valve train is OHV with two valves per cylinder and multi-port fuel injection for fuel induction. The budget portion of the equation came from a 7.4L Gen VI big-block Chevy straight out of the local wrecking yard. The vin is for a 2004 gmc 1500 with a 5.3 vortec. Dedicated to making your Chevy Truck bad***. Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? We are running about 2-3 days on turnaround right now. I have a 2000 GMC school bus with the L21 7400 motor. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. Do you have identifying marks on the ECU? Free Shipping over $199* Same Day Shipping before 7pm* Price Match Guarantee Free Shipping over $199* Same Day Shipping before 7pm* Sequential-Port Fuel Injection (454 only had 2 Throttle Body Injectors) 3. During its five years on the market, the 7400 was employed in 26-foot U-Haul trucks for commercial purposes. If you want to take full advantage of the cam swap then a custom tune will be needed to address that. You may also like. Its amazing what some bolt-on parts can do! GAS MILEAGE. Mar 20, 2011 #4 M MyBoTy Veteran Member Feb 9, 2002 1,567 Lubbock, Texas USA I would think that u-haul did not use their own ECM. Change to a synthetic oil that is light-weight. And what is the final cost of your ECM. Anything that will help the performance. Really? We immediately checked the latest 8.1L off the list due to lack of availability and parts cross over. Do you have any videos of how to locate and remove my ECM? I own a 1998 Safari Trek 2830 P32 chassis with an L29 28'7" Class A RV Drivetrain it s completely OEM.. cam with matching torque converter and headers would be easy. 454 Vortec Reliability and Ownership Guide, Pre-Purchase Inspection: What to look out for, crate version of the 454 big block from Chevy, 1996-2000 Chevrolet/GMC C/K GMT-400 platform trucks 2500/3500, 1996-1999 Chevrolet Suburban 2500/GMC Suburban 2500, 1996-2000 Chevrolet Express ( & 1 ton versions), 19982001 Chevrolet Kodiak/GMC TopKick/Isuzu H-Series 4500 5500, Larger Fuel Injectors and Fuel Pump Regulator. Yes that would be fine, you would just need to call in to our service department and schedule a date :). Technical Specifications: No filter cleaning required for up to 100,000 miles. 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. It went through different upgrades over the years finally ending with the 454 Vortek which stopped production in 2001. I am ready to pull the trigger if I continue to run 87 octane fuel. Yes our tuning does work for trucks as well. Jump to Latest Follow . I didnt see anything on the site but that doesnt mean I saw everything. We do not, however, have core PCM's for this engine so you would have to send your PCM in for the flash. I heard these trucks have a torque management system does this computer give my truck back all its power? You are using an out of date browser. . I have a 98 C-3500 dually with a Vortec 454. Buy in monthly payments with Affirm on orders over $50. better yet have it tuned (Brian Bosch I believe is the man to talk to about . If I send yall Parts list of what kind of cam, injectors, pistons, etc. We would reprogram yours and put it in a new case so it looks nice! The K&N raises the horsepower of your 5.7 Vortec crate engine by 45 percent. 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 am of the same opinion that the UltraPower programming is going to be by far your best "bang for the buck". what features will i gain with this new unit. Truth be told, Vortech offered a number of Maxflow Aftercooler systems but we selected an intercooler core we had on hand for testing. Pindar Some parts are not legal for use in California or other . Using 3.5-inch aluminum tubing from CXRacing, we configured the intercooler between the YSI supercharger and the blow-through carburetor bonnet. Just need a working substitute, no enhancements really needed. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! There was plenty of power left in the YSI, but at 847 hp we couldnt help but be amazed at the extra strength GM put into the design of their 290-hp big block. Been reading the net the last few days on power upgrades for my truck after reading the "best year diesel" thread on here. Power & Performance News is the source for news, tech and products that help you get more performance from your vehicle. 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 do not have a hard and fast rule on core returns for the UltraPower programming ECM's as long as it is in reason. Use a set of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. My question is that I have a 1998 7.4 parts truck. 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. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. The state of California requires that this warning be posted for people purchasing products that reside in California. We set all the parameters in the PCM, so you will not have a way to make adjustments on your end. 4 Bolt Main GM Factory Vortec, Edelbrock's Performer Multi-Point EFI. 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. O-rings: Top and bottom, 14.5 mm - Viton. K&N fuel injection performance kit. The Vortec 8100 was built off of the GM 454 engine platform, also known as the 7.4 Vortec. 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! This project will also let customers know if spendintg approx $2300 on all these upgrades is going to give them the results they need from their big block engines. Feel free to call me with your vin # handy if you would like to get your order in. That is the difference between cookie-cutter and custom! Oil collects on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons), reducing horsepower through parasitic drag. my old part number on ecm is 16263494 on 1999 454. This 1-ton dually truck is used for hauling a large slide in camper and atv trailer. Apr 9, 2008 #4 7 70SSman Veteran Member Aug 11, 2005 134 Amston, CT, USA 100$ with low miles. Also how much benefit do you think I would gain by going aftermarket catback exhaust. We also took the liberty of installing a Race-Port blow-off valve from Turbo Smart. This thing is weak as water. We can easily do this with the specs you provide. Will the UltraPower tune, give me the "best bang for my buck" performance increase? The 7400 was essentially the same big block 454 that powered Chevy through the muscle car years, but with improved cylinder heads and a hydraulic roller camshaft, it was far more efficient than the old LS6 could ever hope to be. When taken together, this fairly inexpensive approach can be good for noticeable gains in fuel economy. But like any stock engine, there was tons of power left to be squeezed out. 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? But don't despair. We have a complete Banks Power System and Banks Air Flow. Without going into the engine, they make a supercharger kit for it, I know whipple use to. 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. 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. I assume the module is a pre-programmed ECM chip that replaces the stock ECM chip. I have a 2000 3500 454. I do still have all the O2 sensors but would like to delete them if possible. I recently ordered an ecm for a 7.4 vortec and was very impressed. 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 bought this truck brand new. I am certain we can get more power and overall better drivability with our tuning versus your current setup. 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. BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built . I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. Can I reprogram on the fly as conditions change and performance needs warrant a change?? JavaScript is disabled. 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. 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. Are the tunes generic or do you change different things for different people? Give me some idea as to what this product does exactly, and how I will benefit from spending $$ on it. I've made several performance upgrades myself, but are always looking for something better. 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. Yes, you can pay the $100 up front core charge and be refunded when you send your original back to us. I have a 1996 Winnebago with a P30 chassis and a 454 75,000 miles and runs great. The tune will definitely wake the truck up. Yes, we could accept the PCM from your '98 as the core. Stage 1 Upgrade for Mercury 525 EFI. I sprayed starter fluid in the tbi and it fired up for a few second. Rowe studied engineering, philosophy and American literature at Central Florida Community College. 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. Elgin Industries set of (16) Hydraulic Roller Valve Lifters compatible replacements for Big Block Chevy GMC & Pontiac engines. Very interested in this. Buy your ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set at Amazon. Any thoughts from you technical guys? 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 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. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? 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. . Thank you. It is located on top of the radiator support and has 4 connectors going into the back of it. (454 used only MAP) 2. Switch to a lightweight synthetic oil. Mostly people saying to try this and try that. CAN YOU REALLY MAKE DECENT POWER WITH A SET OF PEANUT PORT BBC HEADS?. Seems like it's lacking power towing my boat. Wiring is the same. I have a uhaul topkick with the 7.4. They have a high strength carbon steel housing and a high performance rolled seam that exceeds OEM pressure requirements. vortechsuperchargers.com. I replaced the relay to no avail. Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. The only weak link is the peanut port factory heads and the sprinkler style fuel injection. We wanted to make sure the air/fuel and timing curves were spot on before running the supercharged monstrosity in anger. He could even be found working on tractors or hay bailers while on vacation at his uncles farm. We can tune stock or modified, not a problem. Dodge RAM 3.0 Ecodiesel Performance Upgrades Guide, Best Ford 6.7 Powerstroke DPF Delete Kit Upgrade. Engine Hotrodders' Lounge Body - Exterior Transmission - Rearend . To find out just how much the 30-year-old behemoth could muster, they took it to Westech Performances dyno room. FULL RESULTS-GEN 5 454 UPGRADE-STOCK PEANUT PORT HEADS. With the shut downs due to the virus, our normal service company that does that for us is closed. If it is a 1998 then yes you can. 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? Why a motorhome? 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 . CHEVROLET 7.4L/454 - Free Shipping on Orders Over $99 at Summit Racing Departments Restoration Stock Replacement Street Rod Shop Departments Air & Fuel Delivery Books/Videos/Software Brake Systems Chassis & Suspension Cooling & Heating Engines & Components Exhaust Exterior & Accessories Fasteners & Hardware Fittings & Hoses Gaskets & Seals 2. We don't however specialize in forced induction applications so we would not be able to help you with that. Our tuning is custom to your vehicle so if you ever did have a dealer flash the computer it would wipe out the performance settings and revert to stock. 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*. When you purchase, just let us know any modifications or requests and we can accomodate. Can you tune my new 2000 ECM and will it work without the original key and ignition harness. Makes NO permanent changes to your vehicle's computer! What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? Would you be able to tune this on a new computer so I can keep the original? I'm interested in the available upgrades for the vortec 454. Hot Rod And remember, thats all without touching the bottom end. 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: Vise grip, needle-nose and standard pliers. 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. I have a vortec454 in a non smog az tow vehicle. 496 cubic inches. Thanks for any help. We removed the factory EFI injection, and replaced it with simple carburetion. The issue with your tachometer would only be fixed if there is an actual issue with your PCM. 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? A stock 12v ain't got **** on a BBC. Mark McNabb was a contributor at TopSpeed from 2013 to 2018. We have no issues with tuning a higher mileage engine as long as it is in good running condition. We have been doing them on a limited basis, it has been very challenging to find good cores to use. . Unfortunately this is not something that we offer. Buy your Innovative Performance Chip/Power Programmer at Amazon! Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. $360.56. Check back with us as we plan on adding a set of Brodix Race Rite aluminum heads to the mix in Part 2 of Project Boneyard Boost. With our tuning, peak horsepower is at about 3500 RPM and peak torque is about 2500 RPM. Gasoline engines do not require different settings for different conditions like a diesel engine does. It debuted in 1970 as an upgrade of the 427 big-block V8 engine. I have a 2000 C3500 with the 454/L29 and auto trans. Buy your Big Autoparts Ignition Distributor Set DR474 DR331 at Amazon! Thanks, WILL THE 2000 1 TON DULLY I HAVE STILL PASS CAL SMOG WITH THIS TUNE UP EMC. 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". I do some pulling but mainly driving with this truck I have a factory y pipe with no cats and dual 3 inch flowmaster mufflers. Is it not the same motor from 96 to 2001. Is this doable? Also, is shipping included both ways? Would we still get the good price when you get more control modules in stock? 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. will i notice anything? We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. Free shipping. No where near diesel power my ass. way stronger than a stock 12v, 6.5, & 7.3 powerstroke by far!!!! Yes we modify the shift patterns to hold the upper gears longer, your shift kit would not interfere or cause issues. The 8.1 Vortec was produced to compete with Dodge's 8.1 Magnum V10, and Ford's V10 Triton engines of the time. Find many great new & used options and get the best deals for BBK Performance Parts 1710-XC GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD at the best online prices at eBay! Mfg Performance Parts www.straubtechnologies.com www.distributorgears.com How To Add 70 Percent More Power to A Chevy 454 V-8. The Vortec 454 was touted as having substantially more power. We are unaware of any cam upgrades specifically for the L21. You will gain approximately 35-40 horsepower and 45 lb-ft torque. Oct 25, 2004 Do you guys know anything about the L29 Vortec motor. 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. 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. The batteries are fully charged and there is 12 volts to the distributor. The UltraPower ECM performs very well on both stock engines and ones that have been upgraded with other modifications. 16238212. The upgraded Vortec 7400 is a 7.4L V8 OHV 16V-volt FI engine. The peak numbers jumped from 791 hp and 713 lb-ft with no intercooler to 847 hp and 761 lb-ft with the intercooler. Cost would be $495. 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. Explore Our Forums. The tuning alone will be the single biggest change you can make to improve power and throttle response. $399.99. 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. This is only 1 of the many changes that we make with our programming to achieve great power gains. Yes, we can tune your L21 for similar gains as with the L29. For more information, visit www.P65Warnings.ca.gov, NOTICE: Fororders outside of United States. It will not void your factory warranty, and does not modify any emissions systems. I won't change the exhaust or add a ring eating K&N. 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. 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. No videos but your ECM is fairly easy to identify and replace. 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. Engine is in stock configuration with no upgrades. Yes, we can tune your engine for more power, doesn't matter what type of transmission. Can I tune it myself later with my own tuner or is it still a black box like the oem? 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). I installed a K&N replacement are filter in the stock air box. 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 ignition timing was dropped to 21 degrees and after adding a few jets to the carburetor, we were rewarded with some serious power. I just ordered an ECM for my 7.4 and was curious on if you guys did this tuning on the 5.7s? Yes, we can resolve your issues. The P12 was only available for 1 or 2 years so there wasn't enough demand to continue producing products for it. 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. If you send it to us you avoid paying the core charge. I just put the k&N system on my truck made a huge difference in sound and performance I would deffanitly recomend spending the $250. Yes, we tune for 87 octane unless a higher octane is requested. 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! Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. 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. Body Diameter: 16 mm. I read in earlier questions asked that you had stopped doing the earlier ones. At times I get a dtc for bank 1 and 2 too rich. Check for Availability: $349.95. Gains will be on par with what we achieve with the RV's so it will very well suited for towing. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. It will be plug and play. 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. That just won't do. Free shipping. This engine has two valves per cylinder and features multi-port fuel injection. Is the Vehicle Control Module an ECM by another name? I wish we could say for sure that you will be able to see a nice gain but we try not to over-promise on that. I have been watching lots of posts and things get carried away very quickly about getting big big hp. 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. my ecm has to be replaced. New 2-Piece Intake Manifold w/Long Intake Runners 7. 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. Switched to Mass-Air Flow. Naturally, the truck-based 454s were tuned for torque, so having nearly 500 pound-feet wasnt a big surprise. HotCars covers all things automotive: the latest auto news and informative reviews on the car, pickup truck and motorcycle industries. 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. 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. Warmed up at idle the gauge is reading 1200RPM then put it into drive holding the brake and its reading about 1000RPM. 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 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 in a functional pcm for my Suburban mentioned in last question whats the average turn around for it? It was also noted to have more power for gasoline engines. Please just leave in the order comments your requests to be done. what does this do at emission inspections?? It is quite a noticeable difference! 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. The stock Vortec iron head will not tolerate more than .440-inch lift. As long as the engine is well maintained, reliability is not affected. I will be sending you my ECU. 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. 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. 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.
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