and will it improve my over all power? I'm is Arizona and I'm planning a trip this month after Bonneville, to Aberdeen, home town, and Centralia, still have relatives there. 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 ?? Yes, you can pay the $100 up front core charge and be refunded when you send your original back to us. Thank you. . 1999 Crew cab dually, 454 vortec, AUTOMATIC. Thinner oil drags less on internal engine parts, helping the engine to spin more freely and run more efficiently. Installed E3 spark plugs which seemed to help. I have had a hard time finding much of anything for these engines. 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. 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 don't mind a "dirty" PCM case then we can take care of an order for you. 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. I sprayed starter fluid in the tbi and it fired up for a few second. The heads, pistons, and intake are stock. The valve train is OHV with two valves per cylinder and multi-port fuel injection for fuel induction. A/T Flywheel, Hedman TEMS headers, and all the other good stuff that goes with a long block. I am doing a full engine swap from a damaged motorhome to my older motorhome. The upgraded Vortec 7400 is a 7.4L V8 OHV 16V-volt FI engine. Switched to Mass-Air Flow. 1997 gmc 3500 cc dually. Having tried the things you already have, I am pretty confident the issue is the PCM. Yessir! Yes, we can tune your engine for more power, doesn't matter what type of transmission. 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. Yes, we tune for 87 octane unless a higher octane is requested. Thanks. Yes, we could accept the PCM from your '98 as the core. After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. 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'm sorry, we can't tune anything prior to 1996 model year. 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. I just bought this 97 suburban 4wd with the bbc. A few weeks ago I bought a very low milage 454 Gen. VI L29 Vortec engine with hydraulic roller. BBK Performance Parts 1710-XC GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. The intercooler did indeed drop the inlet air temps before the carburetor from 248 degrees to 111 degrees and the cooler charge dramatically improved the power output. You are using an out of date browser. 2000 Chevy Truck 454 Specs | It Still Runs Chevrolet 7.4 Vortec was a modern-day improvement of the firms most legendary big block. the Vortec 7400 (454) that came in that suburban is one hell of an engine, there are also many things you can do to get more mileage and power out of it. Pace Performance Products in Ohio put together a decent upgrade. torque so it will definitely be able to hold the upper gears better when hill climbing and have improved acceleration. All above engines equipped wit Hydraulic Roller Lifters. I have a vortec454 in a non smog az tow vehicle. We are running about 2-3 days on turnaround right now. 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? Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. There is a small red wire that has never been connected to anything. 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. Nothing I was finding really listed ACTUAL upgrades. Topping the engine is a borrowed four-barrel Holley XP carburetor. Install a high-flow air filter and a cold air intake. Warmed up at idle the gauge is reading 1200RPM then put it into drive holding the brake and its reading about 1000RPM. Vortec Big block performance upgrades. - GMT400 1996 K3500 454 (7.4L) | Off Roading Forums Even stock we see impressive gains but even more so with the Banks PowerPack installed. 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. Vortec 454 7.4L Fuel Injector Upgrade, Replacement old injectors with 4.56 might be abit tall. 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. Rowe studied engineering, philosophy and American literature at Central Florida Community College. How to Pick Up Big Power On a Junkyard 454 With a Simple - MotorTrend In 2001, production of the 7400 line was discontinued. I would like the biggest bang for the $. 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. Free Shipping over $199* Same Day Shipping before 7pm* Price Match Guarantee Free Shipping over $199* Same Day Shipping before 7pm* Free shipping for many products! It is not 4x4. UltraPower GM / Workhorse 7.4L (454) Custom Tuning - Brazel's RV So, I am contemplating upgrading this thing for more power, or selling and buying a Dmax. Really? It is bone stock except for tow mirrors and Kodiak door handles on all 4. A restrictive or clogged air filter makes the engine work harder to breathe, which reduces efficiency. 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. 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. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets. 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. 454 vortec or 8.1 swap? | Chevy Impala SS Forum I know they were installed in trucks from 96- 00?. Thanks. So I have a 98 K3500 with the 7.4L and I use it mainly for hauling, but I have began to daily it. Use a set of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. $119.95. We immediately checked the latest 8.1L off the list due to lack of availability and parts cross over. We use cookies to ensure that we give you the best experience on our website. This is perfect for an otherwise stock engine as the gains are the best bang for the buck by far. 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. 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 UltraPower ECM performs very well on both stock engines and ones that have been upgraded with other modifications. Forget the typical race-motor build up, Boneyard Boost was all about force feeding some tired, high-mileage workhorse we purchased for the paltry sum of $500 ($250 on half price sale weekend!). I borrowed a friends TBI 454 dually to pull my blazer one time and it impressed the **** outta me. The terms ECM, PCM, and VCM are all used to describe the engine computer by various manufacturers, yours is located above the radiator . In an effort to further drop the inlet air temps, we installed a makeshift air-to-water intercooler. I THINK I want a diesel until I look at the prices. I heard these trucks have a torque management system does this computer give my truck back all its power? Opinions On the 7.4 / 454 Suburbans and engine - Expedition Portal What are your recommendations?? 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. It debuted in 1970 as an upgrade of the 427 big-block V8 engine. However, Chevy still offers the 454 big block V8 as a crate engine. Change to a synthetic oil that is light-weight. 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. m) at 3200 rpm. Chevy 454 Rebuild Kits for Complete Street Performance! Oxygen sensor modifications can be done. 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. Hot Rod And remember, thats all without touching the bottom end. Can i tell if my RV has this already? Roller Lifters 5. Stronger shift points for towing and power. That extra air entering your engine must go somewhere; a full aftermarket exhaust system like this is always beneficial to fuel efficiency, especially when combined with a freer-flowing intake. The engine receives cooler, more oxygen-dense air through a chilly air induction system. I have a 98 C-3500 dually with a Vortec 454. Following up from previous question, here is the VIN 1GDG6H1BXYJ907917 and #s off the ECM, 09384681, sev. 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. The state of California requires that this warning be posted for people purchasing products that reside in California. This ignition system upgrade will allow you to set your distributor for a little more timing advance. Chevrolet Performance 454 HO 454ci/438HP Crate Engine - JEGS I want to install a cam while you have the ECU. Every horsepower subtracted as a result of parasitic drag is one less horsepower that wont help your truck travel down the road. If you send us your PCM, our turn around is usually 1-2 days. TQ with those modifications done. Power & Performance News is the source for news, tech and products that help you get more performance from your vehicle. Apr 10, 2008 #5 M MyBoTy Veteran Member We can tune it if you can build it :). Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. If you had the proper tuning software, you could tune it yourself later. The 1970 Chevrolet 454 was the most powerful with outputs of 360 and 450 horsepower from the LS5 and LS6, respectively. Despite the impressive cooling powers of the carburetor, we were still concerned about the elevated charge temps going into the carburetor. 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. 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. The tuning alone will be the single biggest change you can make to improve power and throttle response. It was also noted to have more power for gasoline engines. However, this engine was intended to provide significant towing power for CAFE-exempt vehicles, so there is still room for improvement. A cold air induction setup will feed the engine cooler and more oxygen-dense air. I'm interested in the available upgrades for the vortec 454. The Vortec 454 was touted as having substantially more power. Only a set of dyno headers and an electric water pump were different. This is a crew cab, 8 foot bed. 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. They have a high strength carbon steel housing and a high performance rolled seam that exceeds OEM pressure requirements. The air filter is easily removed, cleaned, and reused. Thanks. Unfortunately this is not something that we offer. 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've always heard that they were a good upgrade to the TBI 454 and earlier 454 heads. 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. 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. 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 We do not go further back than 1996 (OBD2) modules, sorry. I have a 2000 3500 454. Engine Hotrodders' Lounge Body - Exterior Transmission - Rearend . I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. Make use of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. no. 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. Check the make, year, and model of your car to see if the VIN number is available. The tune will definitely wake the truck up. And performance tune? 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! That just won't do. Thanks. I have a 2000 GMC school bus with the L21 7400 motor. Budget Vortec Head Upgrade: Easy, Money-Saving Benchtop Mods It would be a good idea to re-tune for the Banks and injection systems. They left all the original parts in place like the two-barrel carburetor and dilapidated ignition system. I bought this truck brand new. . The exhaust does not have CATS with dual to the muffler and single exit tailpipe. 800-417-4559 Jay, https://www.ultrarvproducts.com/UltraPower-GM-Workhorse-7.4L-(454)-Custom-Tuning. They seem to be similar to those used in your RV work. 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. 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. We do not, however, have core PCM's for this engine so you would have to send your PCM in for the flash. Engineered specifically compatible with General Motors Vortec V8 engines,specifically compatible with General Motors Vortec V8 engines,Offering the quality,reliability,durability. Thanks, WILL THE 2000 1 TON DULLY I HAVE STILL PASS CAL SMOG WITH THIS TUNE UP EMC. vortechsuperchargers.com. Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? Dodge RAM 3.0 Ecodiesel Performance Upgrades Guide, Best Ford 6.7 Powerstroke DPF Delete Kit Upgrade. Wiring is the same. Dedicated to making your Chevy Truck bad***. $399.99. FULL RESULTS-GEN 5 454 UPGRADE-STOCK PEANUT PORT HEADS. Please contact us directly to set that up at 800-417-4559. We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. Turn around time is 1-2 business days. Buy your Big Autoparts Ignition Distributor Set DR474 DR331 at Amazon! The issue with your tachometer would only be fixed if there is an actual issue with your PCM. Cats have been removed as well as smog pump. The 454 HO crate engine boasts 438 HP and 500 lb-ft of torque. Also how much benefit do you think I would gain by going aftermarket catback exhaust. 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. 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. 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. I called Banks Power last week to try and find out what they recommend. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? It is an all-iron engine (block and heads . Would you be able to tune this on a new computer so I can keep the original? And a k and n filter. Vehicle Monitoring and data-logging like no other! Elgin Industries set of (16) Hydraulic Roller Valve Lifters compatible replacements for Big Block Chevy GMC & Pontiac engines. I recently ordered an ecm for a 7.4 vortec and was very impressed. Chevy 5.7 Vortec Engine Performance Upgrades Later i want to install the banks PPB 49070 package on this motorhome next year. I was interested in your tune for this engine and was wondering what your best guess on the horse power / toque gains would be. I won't change the exhaust or add a ring eating K&N. 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. Will this correct my RPM gauge issue? We modify this so that it is still "safe" but definitely wakes the truck up. 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. If you send your ECM in, we can make the necessary adjustments you are requesting. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. 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. At times I get a dtc for bank 1 and 2 too rich. 90 and older is particularly bad and that is largely due to NO OVERDRIVE. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. Don't worry about what a camshaft may produce at 4000-5000 rpms in truck engines like this - YOU DON"T DRIVE THERE! If I order a ecm reprogram will this fix my speedometer error too?? When you purchase, just let us know any modifications or requests and we can accomodate. Or if I pay to send in, is the return shipping included in the $495? Common Problems with Chevy 454 Vortec (Explained!) Yes we modify the shift patterns to hold the upper gears longer, your shift kit would not interfere or cause issues. Just worth mentioning. 2019 Rodney W. Brazel Inc. - Ultra RV Products is a Division of Brazel's RV Performance, UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning, within 24 hours from the order date. The main improvements will be improved shifting and overall more torque to pull hills. oh, by the way, this is a low mileage engine, single owner and I have taken excellent care of this truck. Engine is in stock configuration with no upgrades. How to Make Power with a Chevy TBI V-8 - MotorTrend 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). will your new part ecm work on this motorhome. 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. 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. It specs out at 265 HP@4500 RPM and 340 ft/lbs of torque@3500 RPM. Heads, intake and headers would definitely wake it up. Is the Vehicle Control Module an ECM by another name? The batteries are fully charged and there is 12 volts to the distributor. Is it not the same motor from 96 to 2001. Right now I have a CAI, 2" full length headers, 3" dual exhaust and EGR delete. Truck runs great doesnt miss or anything just seems to not really have any power at all in 1st gear and alittle more in second gear. 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. Whats the stock numbers on a Vortec 454? Alright Jay! Your vehicle is not compatible. 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. Why a motorhome? Give me some idea as to what this product does exactly, and how I will benefit from spending $$ on it. Oil tends to collect on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons) and reducing horsepower through parasitic drag. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. We can easily do this with the specs you provide. If you want to take full advantage of the cam swap then a custom tune will be needed to address that. 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. 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: During its five years on the market, the 7400 was employed in 26-foot U-Haul trucks for commercial purposes. I do still have all the O2 sensors but would like to delete them if possible. Painless Performance 60211 Standard Length MPFI Harness for 1996-2000 GM Vortec 7.4L V8, Innovative Performance Chip/Power Programmer, Big Autoparts Ignition Distributor Set DR474 DR331, ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set, Painless fuel injection wiring utilizes all new TXL wire, OEM fitment connectors and grouped harness breakouts making for an easy install and saving you from using old re-worked wiring; Machine crimped terminals match OE quality. I 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 would reprogram yours and put it in a new case so it looks nice! 1014127996-upoval..CLOSED.."Vortec 7400", 100cc chambers 496 MAG Performance Parts Performance Applications Chevy / GM Trucks Originally Posted by PonyKiller87 Ok, sounds just like swapping over the 96-00 vortec 350 to the 0411 as far as the wiring goes. It can be done fairly cheap , power for days and 15-20mpg, I repeat. This camshaft provides more lift and longer duration using the 10-12 Manifold vacuum. 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. 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 read in earlier questions asked that you had stopped doing the earlier ones. 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. For this test, the motor was configured with an Edelbrock RPM Air Gap intake and Holley 750 carburetor. 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. 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. Stage 1 Upgrade for Mercury 525 EFI. Feel free to call me with your vin # handy if you would like to get your order in. Free shipping. 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*. 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/. Install a high flow air filter and cold air induction intake. L29 Vortec 454 power? - Don Terrill's Speed-Talk I just purchased your UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning. Is there any way I could send you that one as a core in return for one to work in my 2000? Yes, it definitely will. After installed Ultrapower GM/ Workhorse 1998 7.4l Vortec 454c. I tow a large fifth wheel trailer with RPMs between 1800 to 2500 typically. Most ordersare shippedwithin 24 hours from the order date.
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