1997 gmc 3500 cc dually. We are currently waiting on more ECM's to come in to be able to provide them on exchange. 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. 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). Wiring is the same. Very interested in this. 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? If you want to take full advantage of the cam swap then a custom tune will be needed to address that. "SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. The terms ECM, PCM, and VCM are all used to describe the engine computer by various manufacturers, yours is located above the radiator . Thinner oil drags less on internal engine parts, helping the engine to spin more freely and run more efficiently. Hi Warren, that is definitely something we can tune for. The issue with your tachometer would only be fixed if there is an actual issue with your PCM. It is $495 if your sending your core/pcm in first. However, this engine was intended to provide significant towing power for CAFE-exempt vehicles, so there is still room for improvement. Or if I pay to send in, is the return shipping included in the $495? It won't hurt anything to run like that. Vortex comes from the word vortex. The goal was to construct a fuel-efficient engine with an air-to-fuel combustion system that would eventually produce more power. 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. Thanks. Oxygen sensor modifications can be done. After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. Is this doable? 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. We can adjust for speedometer error. It can be done fairly cheap , power for days and 15-20mpg, I repeat. And what is the final cost of your ECM. 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. If you are placing an order to ship outside the United States, Shipping Insurancewill be required and added automatically at checkout. 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. FULL RESULTS-GEN 5 454 UPGRADE-STOCK PEANUT PORT HEADS. Seems like it's lacking power towing my boat. Right now I have a CAI, 2" full length headers, 3" dual exhaust and EGR delete. Yes, we can tune your L21 for similar gains as with the L29. As long as the engine is well maintained, reliability is not affected. Yessir! Et si je devrai faire recalibrer mon ecm? 4.56 might be abit tall. Based on experience, we have had good results with Comp Cams 212/218 hydraulic roller camshaft. K&N Performance Fuel Filters are built for high flow rates and capacity while they provide outstanding filtration. 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. Free shipping. Most generic tuners only change very basic parameters within the computer, whereas UltraPower Tuning changes approximately 400 parameters including both engine AND transmission settings. I would like to get the o2 delete. I have a 2000 GMC school bus with the L21 7400 motor. How to Get More Horsepower From a 360 dragster engine image by Robert Young from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. A/T Flywheel, Hedman TEMS headers, and all the other good stuff that goes with a long block. Unfortunately this is not something that we offer. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. Is there anything to be gained within my parameters? And a k and n filter. A cold air induction setup will feed the engine cooler and more oxygen-dense air. I do still have all the O2 sensors but would like to delete them if possible. Only tow rigs I have used to pull my Jeep with was this truck and my DD Driver 5.3 Tahoe. I have the parts list and see one item called 01-412-8 hyd roller cam for $315. I have a 98 C-3500 dually with a Vortec 454. The K&N raises the horsepower of your 5.7 Vortec crate engine by 45 percent. Every horsepower subtracted as a result of parasitic drag is one less horsepower that wont help your truck travel down the road. At times I get a dtc for bank 1 and 2 too rich. 7.4 chevy engine in georgia boy pursuit motorhome. The L29 454 was originally rated at 290 hp and 440 lb-ft of torque thanks to a combination of fuel injection, large oval-port heads (to replace the peanut ports used in the previous Gen V motors) and a slightly higher static compression ratio. He has worked as a tractor-trailer driver and mechanic, a rigger at a fire engine factory and as a race-car driver and builder. When you purchase, just let us know any modifications or requests and we can accomodate. A stock 12v ain't got **** on a BBC. Also I dont have either downstream 02 sensors. 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. The engine receives cooler, more oxygen-dense air through a chilly air induction system. 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. See listing details. Performance Street, great low to mid-range. Straight Port Cylinder Heads 6. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. 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. Please contact us directly to set that up at 800-417-4559. Is the Vehicle Control Module an ECM by another name? Check out their web sight Bankspower.com Vortech Superchargers Yes, we tune for 87 octane unless a higher octane is requested. Its amazing what some bolt-on parts can do! Could you do a downstream 02 sensor delete? 7.3 is 250-275/505-525 stock. We do not go further back than 1996 (OBD2) modules, sorry. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets. You can source the 454 HO directly from Chevrolet. The stock Vortec iron head will not tolerate more than .440-inch lift. Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. Explore Our Forums. I have had a hard time finding much of anything for these engines. 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). 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. will i notice anything? In an effort to further drop the inlet air temps, we installed a makeshift air-to-water intercooler. 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. Free shipping for many products! Rowe studied engineering, philosophy and American literature at Central Florida Community College. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. For this test, the motor was configured with an Edelbrock RPM Air Gap intake and Holley 750 carburetor. Are the tunes generic or do you change different things for different people? 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. Install an aftermarket windage tray in your engine. Build your own custom newsletter with the content you love from Street Muscle, directly to your inbox, absolutely FREE! The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. Dedicated to making your Chevy Truck bad***. Howards, Hydraulic Roller Camshaft, Chev BB Gen 6 454-502, GM, Chev BB Billet Steel Hyd. Makes NO permanent changes to your vehicle's computer! The P12 was only available for 1 or 2 years so there wasn't enough demand to continue producing products for it. 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 have been watching lots of posts and things get carried away very quickly about getting big big hp. Other #s not sure what they are if theyre useful, 86DAFMM0017433PS, HDW # 16239740. Maybe I need to go by the dealer and test drive a diesel or another gasser so I have a comparison. Thousands of satisfied customers have reported fuel economy increases as well as less transmission downshifting because of the increased horsepower and torque. Hot Rod And remember, thats all without touching the bottom end. Temperature measurements taken before and after the carburetor revealed that the fuel cooling dropped the intake charge temperature from 235 degrees (before the carb) down to 120 degrees (after). When taken together, this fairly inexpensive approach can be good for noticeable gains in fuel economy. GAS MILEAGE. Yes, all gains listed are with 87 octane gas. However, Chevy still offers the 454 big block V8 as a crate engine. 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. With the baby stock cam they made 290hp and 415 ft lbs of torque. Vise grip, needle-nose and standard pliers. Feel free to call me with your vin # handy if you would like to get your order in. 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. When it shows 55 MPH your actually going about 57 to 58 MPH. 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: Truck has k&n air filter, 2.5 inch exhaust (no cats), e3 spark plugs and 8.5mm plug wires. Switched to Mass-Air Flow. Fuel pump doesn't run. 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. I will be sending you my ECU. I sprayed starter fluid in the tbi and it fired up for a few second. I am considering your tune for my motorhome. I am upgrading the fuel injectors with the new Bosch III's and the plugs and wires. What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? Roller Lifters 5. 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. And i was wondering what benefits will i see with my 454 i have a new jasper motor with upgraded injectors and full exhaust. Both Vortec 7400 heads (the '98-'01 12560241 and the '96-'01 10141279) have about 100cc chambers. Purchase a Chevy 454 crate engine online from JEGS High Performance. We will set the tune up based on your modifications and requests. UltraPower 7.4L ECM Benefits: Gains of 40-45 HP and 45-50 lb-ft torque depending on existing upgrades Gains of 1/2 - 1 MPG Maintains speed and higher gears when climbing hills Headers exhaust. 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. 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. 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 $. 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 I have a uhaul topkick with the 7.4. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. Thanks. The upgraded Vortec 7400 is a 7.4L V8 OHV 16V-volt FI engine. 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. Turn around time is 1-2 business days. Is it possible to get the newer 0411 with your tune for my truck. Injector type: US-CAR, saturated. Naturally, the truck-based 454s. It may not display this or other websites correctly. The peak numbers jumped from 791 hp and 713 lb-ft with no intercooler to 847 hp and 761 lb-ft with the intercooler. After installed Ultrapower GM/ Workhorse 1998 7.4l Vortec 454c. 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. So, what are the most common problems with the Chevy 454 Vortec? It is quite a noticeable difference! That is the difference between cookie-cutter and custom! If not can a non uhaul ecm be used (ie plugged into the current harness)? In our quest to locate a suitable 454, a typical rip to the wrecking yard revealed at least three of the four available big-block combinations. 800-417-4559 Jay, https://www.ultrarvproducts.com/UltraPower-GM-Workhorse-7.4L-(454)-Custom-Tuning. If you continue to use this site we will assume that you are happy with it. The same 290 horsepower that was standard for all GM cars in 1980 was maintained throughout the decade. We CAN tune the engine computer with our UltraPower tuning to get more performance but we MUST have you send your PCM in to us for programming as it has a unique PCM that we don't have cores for. 1999 Crew cab dually, 454 vortec, AUTOMATIC. 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. Installed E3 spark plugs which seemed to help. 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. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. The tune will definitely wake the truck up. Apr 14, 2016. Dollar for Dollar, it is highly unlikely that the $2400 for a full blown Banks Power Package would yield the same cost/benefit as say the addition of the UltraPower GM / Workhorse 7.4L (454) Custom Tuning module. It was utilized in both performance automobiles and trucks, as well as maritime and industrial applications in various combinations. It is a redesigned Chevrolet Big-Block engine and was introduced with the 2001 full-size pickup trucks. Most ordersare shippedwithin 24 hours from the order date. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. Oil collects on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons), reducing horsepower through parasitic drag. . Headers suggested. 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. Oil tends to collect on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons) and reducing horsepower through parasitic drag. Do you still tune the 96 ecm? I have a 2000 3500 454. For GM vehicles, the Vortec variant increased power by 60 horses. 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. Are there any gains to be had by programing and adding headers to my truck? The greater the power gains, the bigger the budget. You will gain approximately 35-40 horsepower and 45 lb-ft torque. 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. 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. 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". Programmers. They left all the original parts in place like the two-barrel carburetor and dilapidated ignition system. So, I am contemplating upgrading this thing for more power, or selling and buying a Dmax. Give me some idea as to what this product does exactly, and how I will benefit from spending $$ on it. We include a data recorder with the ECM for your to record engine data and send to us to verify all engine systems are running efficiently. 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. 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. Don't worry about what a camshaft may produce at 4000-5000 rpms in truck engines like this - YOU DON"T DRIVE THERE! 496 cubic inches. no. This ignition system upgrade will allow you to set your distributor for a little more timing advance. 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. 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. We can do the tune now with the Banks kit taken into consideration for down the road. I THINK I want a diesel until I look at the prices. UltraPower 7.4L ECM Benefits: Gains of 40-45 HP and 45-50 lb-ft torque depending on existing upgrades Gains of 1/2 - 1 MPG Maintains speed and higher gears when climbing hills For a plain jane Sierra, not bad in my opinion. Switch to a lightweight synthetic oil. . A few weeks ago I bought a very low milage 454 Gen. VI L29 Vortec engine with hydraulic roller. We have no issues with tuning a higher mileage engine as long as it is in good running condition. The tuning is custom to each vehicle depending on calibrations, modifications and any special requests. It's a nice cam for a 454 big block chevy engine that runs with 1500-6500 RPM Range. I have a 2000 OBS Chevy quad cab with a 454 Vortec. I heard these trucks have a torque management system does this computer give my truck back all its power? Apr 10, 2008 #5 M MyBoTy Veteran Member Always a big complaint with 454 TBI trucks. Do you have any videos of how to locate and remove my ECM? Also how much horse power and torque do these motors have stock? I dont have the 2000 VIN only the VIN from my 1995. Any "recalibration" would require sending your ECM to us for programming changes. vortechsuperchargers.com. Typical turn around is 3-4 days, sometimes quicker. I think they were made before Chevy started using real tornados. Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. Raylar performance packages allow your 496 to produce massive amounts of power without sacrificing reliability. 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? I am certain we can get more power and overall better drivability with our tuning versus your current setup. 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. We wanted to make sure the air/fuel and timing curves were spot on before running the supercharged monstrosity in anger. Its 567 horsepower of usable, reliable, fun power that anybody on a budget can build. If you would like to place your order feel free to give me a call at 800-417-4559. Also, is shipping included both ways? Yes, we can do that. It is bone stock except for tow mirrors and Kodiak door handles on all 4. 3. It was the same size as the outgoing 7.4 L V8, but got a boost in power and more towing capacity. Buy your K&N PF-1000 Fuel Filter at Amazon! Truck is stock otherwise and runs good just looking for more out of it. For a better experience, please enable JavaScript in your browser before proceeding. Truth be told, Vortech offered a number of Maxflow Aftercooler systems but we selected an intercooler core we had on hand for testing. Please see our shipping terms for more information. This is a lie. HotCars covers all things automotive: the latest auto news and informative reviews on the car, pickup truck and motorcycle industries. Roller Cam, .483 Lift . We gain on average 45-50 horsepower and 50 ft. lb. Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. Can I tune it myself later with my own tuner or is it still a black box like the oem? Can I reprogram on the fly as conditions change and performance needs warrant a change?? What type of gains could I expect with a tune for this? performance, modifications, classifieds, troubleshooting, maintenance, and more! We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. Warmed up at idle the gauge is reading 1200RPM then put it into drive holding the brake and its reading about 1000RPM. 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've always heard that they were a good upgrade to the TBI 454 and earlier 454 heads. However, this engine was developed mostly for large towing ability for CAFE-exempt passenger cars, so there is still room for improvement. . Buy your Innovative Performance Chip/Power Programmer at Amazon! BBK Performance Parts 1710-XC GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. I've made several performance upgrades myself, but are always looking for something better. Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. If product is incorrect for the provided VIN we will contact you to revise order. Alright Jay! Primary or Expansion Gauges And Upgrade Kits (52mm) For 2008+ OBDII CAN bus vehicles, Upgrading SIx-Gun, Economind, and SpeedBrake, or use with BBus Sensor Modules. The banks system will give you 70hp and 85lb-ft. We are unaware of any cam upgrades specifically for the L21. We can send a pre-programmed ECU on core exchange. Banks iDash: SuperGauge & DataMonster. It is an all-iron engine (block and heads . With the shut downs due to the virus, our normal service company that does that for us is closed. 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. We can easily do this with the specs you provide. The ignition timing was dropped to 21 degrees and after adding a few jets to the carburetor, we were rewarded with some serious power.