454 vortec performance upgrades

Naturally, the truck-based 454s were tuned for torque, so having nearly 500 pound-feet wasnt a big surprise. I am considering doing an EGR delete and I wasn't sure if this would accommodate that or if it will still throw a check engine light. Precision Auto Injectors Genuine Delphi 12568155 12586557 GM Fuel Injectors Set of 6 2004-2007 GM 3.5L OHV. It would be a good idea to re-tune for the Banks and injection systems. Also known as the Vortec 7400 (7.4L, Regular Production Option designation L29), Chevrolet's Vortec 454 was a modern-day evolution of the company's most legendary big block. 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. 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. 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! 2. Elgin Industries set of (16) Hydraulic Roller Valve Lifters compatible replacements for Big Block Chevy GMC & Pontiac engines. Next best upgrade you can make is the Banks TorqueTube headers (, We recommend these injectors:https://www.fiveomotorsport.com/bosch-oem-454-j-code-884-black-knight/. Mark McNabb was a contributor at TopSpeed from 2013 to 2018. After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. 1996 c3500 dually 7.4 with 5 speed. 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. A stock 12v ain't got **** on a BBC. The great thing about using a blow-though carburetor combination is the intercooling effect you get from the introduction of fuel. 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. The peak numbers jumped from 791 hp and 713 lb-ft with no intercooler to 847 hp and 761 lb-ft with the intercooler. . Would this work on 1996 7.4L L29? 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. The vin is for a 2004 gmc 1500 with a 5.3 vortec. I have Bosch Gen III injectors; Volant Air intake; and 3 exhaust. We will set the tune up based on your modifications and requests. When you purchase, just let us know any modifications or requests and we can accomodate. We tune the original black box PCM but do not do the 411 swap. Why a motorhome? Or is it what get is all you get? 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. 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. Seems like it's lacking power towing my boat. Also the torque management. 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. Is it not the same motor from 96 to 2001. Dedicated to making your Chevy Truck bad***. 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? Yessir! Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. They seem to be similar to those used in your RV work. 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. It is unlikely that the Vortec 454 accessories will clear the hood. 496 cubic inches. Later i want to install the banks PPB 49070 package on this motorhome next year. I have a GMC PCM service # 16238212 for a 99 Topkick w/7.4L 454 gas engine; and was wondering if you are able to repair these PCMs/ECMs or have an equivalent I can replace it with? and will it improve my over all power? vortechsuperchargers.com. The Vortec enhancements simply allowed GM to pass smog at a higher RPM. 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. 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. 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. Both Vortec 7400 heads (the '98-'01 12560241 and the '96-'01 10141279) have about 100cc chambers. 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. Check out their web sight Bankspower.com Just need a working substitute, no enhancements really needed. The exhaust does not have CATS with dual to the muffler and single exit tailpipe. 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). There is a small red wire that has never been connected to anything. The tuning alone will be the single biggest change you can make to improve power and throttle response. Or if I pay to send in, is the return shipping included in the $495? 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. Can I reprogram on the fly as conditions change and performance needs warrant a change?? 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. performance, modifications, classifieds, troubleshooting, maintenance, and more! This is a lie. 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. Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. But like any stock engine, there was tons of power left to be squeezed out. For GM vehicles, the Vortec variant increased power by 60 horses. Et si je devrai faire recalibrer mon ecm? 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. Yes, you can pay the $100 up front core charge and be refunded when you send your original back to us. The state of California requires that this warning be posted for people purchasing products that reside in California. Can I tune it myself later with my own tuner or is it still a black box like the oem? 5. 454 L29 Power Upgrade. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. 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 own a 1998 Safari Trek 2830 P32 chassis with an L29 28'7" Class A RV Drivetrain it s completely OEM.. We would reprogram yours and put it in a new case so it looks nice! 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? Just wondering because Id buy one of those as well. It specs out at 265 HP@4500 RPM and 340 ft/lbs of torque@3500 RPM. Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? For this test, the motor was configured with an Edelbrock RPM Air Gap intake and Holley 750 carburetor. 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. torque so it will definitely be able to hold the upper gears better when hill climbing and have improved acceleration. Purchase a Chevy 454 crate engine online from JEGS High Performance. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. 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. 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. The greater the power gains, the bigger the budget. I am considering your tune for my motorhome. Bosch p/n: 0280155884. For a plain jane Sierra, not bad in my opinion. 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: You are using an out of date browser. Install a high flow air filter and cold air induction intake. 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. . Thanks. When you buy a single component or a complete kit, like a camshaft, you must ensure that it is suitable for your car. The old, weak 240 HP 454 is every bit as. Wiring is the same. We modify this so that it is still "safe" but definitely wakes the truck up. We can also adjust your speedometer to be correct. They left all the original parts in place like the two-barrel carburetor and dilapidated ignition system. Best, least expensive way to get more power out of this engine is with our custom tune. 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. 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. Oxygen sensor modifications can be done. better yet have it tuned (Brian Bosch I believe is the man to talk to about . Vortech Superchargers We can tune it if you can build it :). My question is that I have a 1998 7.4 parts truck. Just make sure to include that information in the order comments and we can make that happen for you :). I just ordered an ECM for my 7.4 and was curious on if you guys did this tuning on the 5.7s? 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 7.4 chevy engine in georgia boy pursuit motorhome. m) at 3200 rpm. Solenoid resistance: 12.5 Ohms. 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. Some differences are: 1. I have a 2000 OBS Chevy quad cab with a 454 Vortec. All other modifications are going to be expensive, labor intensive and still not necessarily yield the same results. I have a 2000 C3500 with the 454/L29 and auto trans. This engine series was utilized on Chevrolet and GMC large truck models such as the Suburban from 1996 through 2001. 1997 gmc 3500 cc dually. Engineered specifically compatible with General Motors Vortec V8 engines,specifically compatible with General Motors Vortec V8 engines,Offering the quality,reliability,durability. Even better than the big peak gains was the fact that the cam swap . If I order a ecm reprogram will this fix my speedometer error too?? If I send in a functional pcm for my Suburban mentioned in last question whats the average turn around for it? my old part number on ecm is 16263494 on 1999 454. I was interested in your tune for this engine and was wondering what your best guess on the horse power / toque gains would be. That said, the main internal differences between the L29 and L21 is that the L21 has forged pistons and crankshaft. Do you still tune the 96 ecm? Based on experience, we have had good results with Comp Cams 212/218 hydraulic roller camshaft. If they were cheap enough, sure. my ecm has to be replaced. Don't worry about what a camshaft may produce at 4000-5000 rpms in truck engines like this - YOU DON"T DRIVE THERE! Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. Yes, this would be the compatible ECM with your VIN and part #. I have the parts list and see one item called 01-412-8 hyd roller cam for $315. Yes, as long as it is a "J" (8th digit of the VIN) Vortec 7.4L, we can tune it. I use the truck for towing and it is quite weak, If this ecm has to be reprogrammed in the future do I go to GM Dealer or have to send back to you?? We use the original black box PCM's. With the 454, putting in Vortec 350 code and chaning the displacement and enter in the tables/constants/switches appropriate to the 454 is all that is needed. Reasons to buy: We can tune the 2000 ECM for that engine and I'm pretty sure the ignition harness on that vehicle has no tie in with the ECM. Thanks. If you are placing an order to ship outside the United States, Shipping Insurancewill be required and added automatically at checkout. The only weak link is the peanut port factory heads and the sprinkler style fuel injection. We can adjust for speedometer error. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. http://www.cumminsdieselspecs.com/cummins_timeline.html, http://www.internationalpowerstroke.com/timeline.html, http://www.duramaxdieselspecs.com/compare_duramax.html, Tow rig Suspension and Axle upgrades questions (4th Gen Dodge). We can tune stock or modified, not a problem. Apr 9, 2008 #4 7 70SSman Veteran Member Aug 11, 2005 134 Amston, CT, USA 100$ with low miles. If it does work what would do for pulling and climbing hills? 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. This mod will not be inexpensive or simple to execute, but it will pay for itself if you do a lot of towing or drive a lot of miles. The Muscle Automobile Period had come and gone before the 7400 series debuted. 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. 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 only specialize in the big block engines. I am in a non emissions state My 98 GMC K2500 L29 7.4 litre has 2.5" true dual exhaust with pro Flowmax mufflers an X-Pipe, cat delete but still has both upstream and both downstream o2 sensors. 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! In search of power, GM reverted to the big-block engine design, with a 454-cubic inch displacement. We would recommend speaking directly with a camshaft manufacturer to determine the best for your particular engine. Step 2 Install a high flow air filter and cold air induction intake. Is this enough information to create a tune or will you need more information? This ignition system upgrade will allow you to set your distributor for a little more timing advance. Is the pcm that is used a 411? How much can you get them for? 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. This is a crew cab, 8 foot bed. Also, is shipping included both ways? Yes, all gains listed are with 87 octane gas. My tech who does the programming is out of town this week so it would get done first thing next week if you wanted to go ahead with it. GAS MILEAGE. Our acclaimed editorial staff covers all aspects of engine and driveline upgrades with a mission of presenting information that is both interesting and achievable for the average car guy. The stock Vortec iron head will not tolerate more than .440-inch lift. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. I straight wired it to test it and it will run. We can also take care of the TQ management for you. Performance. If you would like to place your order feel free to give me a call at 800-417-4559. 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. We are currently out of clean/painted cases for the PCM's. 90 and older is particularly bad and that is largely due to NO OVERDRIVE. So, what are the most common problems with the Chevy 454 Vortec? Make use of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. And what is the final cost of your ECM. a good set of headers help to. You will gain approximately 35-40 horsepower and 45 lb-ft torque. I assume the module is a pre-programmed ECM chip that replaces the stock ECM chip. I just purchased your UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning. So I have a 98 K3500 with the 7.4L and I use it mainly for hauling, but I have began to daily it. 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. 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. The most important changes that are made have to do with spark advance, fueling, transmission shifting and torque management settings. Howards, Hydraulic Roller Camshaft, Chev BB Gen 6 454-502, GM, Chev BB Billet Steel Hyd. We immediately checked the latest 8.1L off the list due to lack of availability and parts cross over. 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. We are not able to assist in providing this PCM. 3. Check if this part fits . BBK Performance Parts 1710-XC GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. 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. These modifications will help to generate more horsepower without adversely affecting fuel efficiency, which will ultimately increase net mileage. The Chevrolet 454s of the 1970s were the most powerful, with the LS5 producing approximately 360 horsepower and the LS6 generating around 450 horsepower. With the shut downs due to the virus, our normal service company that does that for us is closed. Thanks. Use for stock replacement OEM original equipment. oh, by the way, this is a low mileage engine, single owner and I have taken excellent care of this truck. I have a 1998 Winnebago Brave on a p30 chassis with the 7.4 with a Banks Power Pack. Unfortunately this is not something that we offer. How much will the customization cost me? 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. If you want to take full advantage of the cam swap then a custom tune will be needed to address that. Chevrolet 7.4 Vortec was a modern-day improvement of the firms most legendary big block. Yes, we can tune your engine for more power, doesn't matter what type of transmission. Now, that poses the question: what would you shoehorn this big-block Chevy into? 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. Buy your Painless Performance 60211 Standard Length MPFI Harness for 1996-2000 GM Vortec 7.4L V8 at Amazon! They said they no longer support my RV and had no parts available. A cold air induction setup will feed the engine cooler and more oxygen-dense air. Any "recalibration" would require sending your ECM to us for programming changes. 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. We can easily do this with the specs you provide. 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. I bought this truck brand new. Turn around time is 1-2 business days. Thinner oil drags less on internal engine parts, helping the engine to spin more freely and run more efficiently. It is a redesigned Chevrolet Big-Block engine and was introduced with the 2001 full-size pickup trucks. will i notice anything? 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. The heads used on the L29 combined the large oval intake ports with small (100 cc) combustion chambers to produce a slightly higher (than the Gen V) 9.0:1 compression. The Vortec 8100 was built off of the GM 454 engine platform, also known as the 7.4 Vortec. It was utilized in the Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, and Chevrolet Express. Right now I have a CAI, 2" full length headers, 3" dual exhaust and EGR delete. $360.56. This 1-ton dually truck is used for hauling a large slide in camper and atv trailer. A/T Flywheel, Hedman TEMS headers, and all the other good stuff that goes with a long block. 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! merci. 12568774 438 HP @5300 RPM 500 LB/FT @3500 RPM 1 2 Updated Design The 454 HO features an all-forged rotating assembly for great strength and durability. You can definitely hold on to your PCM, that is not an issue. Yes our tuning does work for trucks as well. Reading some of your responses I came across one with regards to a 1996. This combined with the internal step gearing and maximum engine speed of 6,000 rpm to produce a peak impeller speed of 51,700 rpm, well below the listed maximum of 65,000 rpm. 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. My car is GMC pick-up 7.4L 1998. it is manual transmission. And a k and n filter. I installed a K&N replacement are filter in the stock air box. Roller Lifters 5. 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. The 1993-or-so design FEAD has been shown the clear the factory hood. Thanks, WILL THE 2000 1 TON DULLY I HAVE STILL PASS CAL SMOG WITH THIS TUNE UP EMC. I would think that u-haul did not use their own ECM. 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. Truck has k&n air filter, 2.5 inch exhaust (no cats), e3 spark plugs and 8.5mm plug wires. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. what does this do at emission inspections?? The Gray, the green with white strip and the black test grounded. Their high performance cellulose glass media traps contaminants such as rust, dirt, scale and other foreign materials. And performance tune? Free shipping for many products! (454 used only MAP) 2. Having tried the things you already have, I am pretty confident the issue is the PCM. The engine receives cooler, more oxygen-dense air through a chilly air induction system. Its 567 horsepower of usable, reliable, fun power that anybody on a budget can build. Also how much benefit do you think I would gain by going aftermarket catback exhaust. Weve seen a few 1996-1997 PCMs with this issue. Switch to a lightweight synthetic oil. Also I have Thorley tri Y hearers on mine will that effect the tune? BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. Its amazing what some bolt-on parts can do! You might also want to consider a high voltage coil, high performance 8 mm spark plug wires and a set of quality aftermarket spark plugs to help your engine ignite more of the fuel that goes through it. I've made several performance upgrades myself, but are always looking for something better. How To Add 70 Percent More Power to A Chevy 454 V-8. Install an aftermarket windage tray in your engine. This upgrade will not only improve overall top end power but it also . Cost would be $495. I didnt see anything on the site but that doesnt mean I saw everything. At times I get a dtc for bank 1 and 2 too rich. I've always heard that they were a good upgrade to the TBI 454 and earlier 454 heads. Build your own custom newsletter with the content you love from Street Muscle, directly to your inbox, absolutely FREE! Overall Length: 3 inches, 74 mm. Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! 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. All above engines equipped wit Hydraulic Roller Lifters. Heads, intake and headers would definitely wake it up. Before adding boost, the boneyard big block was run in normally aspirated trim and produced 427 hp at 5,500 rpm and 476 lb-ft of torque at 3,900 rpm. I'm interested in the available upgrades for the vortec 454. Straight Port Cylinder Heads 6. 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 $. Also I dont have either downstream 02 sensors. As long as you don't have any emission systems removed, you will pass without any issues. I replaced the relay to no avail. We do not, however, have core PCM's for this engine so you would have to send your PCM in for the flash. 16238212. I have a 2000 gmc k2500 with the l29 454. What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? I heard these trucks have a torque management system does this computer give my truck back all its power? We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. 95K views 2 years ago WESTECH PERFORMANCE GROUP LETS TALK TORQUE! . The 454 HO crate engine boasts 438 HP and 500 lb-ft of torque. 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. Is the Vehicle Control Module an ECM by another name? 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". I have a vortec454 in a non smog az tow vehicle. It was the same size as the outgoing 7.4 L V8, but got a boost in power and more towing capacity.

Cuando Tu Pareja Te Menosprecia, Articles OTHER