Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. I fought this truck with the cats deleted and air pump disabled. I have a 98 C-3500 dually with a Vortec 454. 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. But like any stock engine, there was tons of power left to be squeezed out. 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: Truth be told, Vortech offered a number of Maxflow Aftercooler systems but we selected an intercooler core we had on hand for testing. Every horsepower subtracted as a result of parasitic drag is one less horsepower that wont help your truck travel down the road. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. 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. Headers exhaust. So I have a 98 K3500 with the 7.4L and I use it mainly for hauling, but I have began to daily it. My car is GMC pick-up 7.4L 1998. it is manual transmission. 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? I plan on the injector and ignition work done in march. We can also adjust your speedometer to be correct. Yes, we can do that. BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM - ebay.com I have a 2000 gmc k2500 with the l29 454. Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! Use for stock replacement OEM original equipment. Whats the stock numbers on a Vortec 454? With our tuning, peak horsepower is at about 3500 RPM and peak torque is about 2500 RPM. 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. Need advice: 454 VI L29 Build | Hot Rod Forum Oct 25, 2004 Do you guys know anything about the L29 Vortec motor. The previous owner had the engine rebuilt in 2012 and tells me they installed an RV cam but I am not sure which one. 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. 800-417-4559 Jay, https://www.ultrarvproducts.com/UltraPower-GM-Workhorse-7.4L-(454)-Custom-Tuning. I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. 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. Really? I own a 1998 Safari Trek 2830 P32 chassis with an L29 28'7" Class A RV Drivetrain it s completely OEM.. We are currently waiting on more ECM's to come in to be able to provide them on exchange. Prices increase after 2/28. 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. Can you tune my new 2000 ECM and will it work without the original key and ignition harness. It debuted in 1970 as an upgrade of the 427 big-block V8 engine. Free shipping for many products! Some differences are: 1. I think they were made before Chevy started using real tornados. This engine has two valves per cylinder and features multi-port fuel injection. I have had a hard time finding much of anything for these engines. 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 THINK I want a diesel until I look at the prices. Programmers. 1996 K3500 454 (7.4L) | Off Roading Forums It is quite a noticeable difference! Mostly people saying to try this and try that. 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. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Chevrolets Vortec 454 was a modern-day evolution of the firms most famous big block. 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 better yet have it tuned (Brian Bosch I believe is the man to talk to about . Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? Thanks. TQ with those modifications done. I do still have all the O2 sensors but would like to delete them if possible. 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. 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. Vortech supplied a pulley combination that included an 80-tooth crank pulley and 32-tooth blower pulley which provided a drive ratio of 2.5:1. Growing up, Mark always had a mind for tinkering on random items throughout his home and dads garage, including a 1953 Ford Mainline and 1971 Corvette Stingray. I have the 411. I heard these trucks have a torque management system does this computer give my truck back all its power? Vise grip, needle-nose and standard pliers. Recommended 454 TBI modifications | TBI - harristuning.com If you send your ECM in, we can make the necessary adjustments you are requesting. 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 $. I have a 2000 GMC school bus with the L21 7400 motor. You can definitely hold on to your PCM, that is not an issue. We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. $199.95. We use cookies to ensure that we give you the best experience on our website. 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*. Rowe studied engineering, philosophy and American literature at Central Florida Community College. It went through different upgrades over the years finally ending with the 454 Vortek which stopped production in 2001. watch out for chips as they just bump the fuel curve. Hot Rod decided to bolt up some typical speed parts. Buy your K&N PF-1000 Fuel Filter at Amazon! I list that this RV was originally equipped with a 4.63 rear gear ratio and a tire size of 225/70R19.5. 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 Check out their web sight Bankspower.com I am certain we can get more power and overall better drivability with our tuning versus your current setup. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. The 8.1 Vortec was produced to compete with Dodge's 8.1 Magnum V10, and Ford's V10 Triton engines of the time. 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 . Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Can you guys tune that ecm? Stage 1 Upgrade for Mercury 525 EFI. 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! A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. I have the parts list and see one item called 01-412-8 hyd roller cam for $315. Chevrolet Performance 454 HO 454ci/438HP Crate Engine - JEGS We are unaware of any cam upgrades specifically for the L21. 16238212. How To Add 70 Percent More Power to A Chevy 454 V-8 - Top Speed Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidaysareprocessed on thenext business day. Raylar performance packages allow your 496 to produce massive amounts of power without sacrificing reliability. The vin is for a 2004 gmc 1500 with a 5.3 vortec. Here is info from COMP Cams. vortechsuperchargers.com. I read in earlier questions asked that you had stopped doing the earlier ones. If I order a ecm reprogram will this fix my speedometer error too?? . All other modifications are going to be expensive, labor intensive and still not necessarily yield the same results. Also how much benefit do you think I would gain by going aftermarket catback exhaust. L29 454 Vortec | Team Chevelle Solenoid resistance: 12.5 Ohms. A cold air induction setup will feed the engine cooler and more oxygen-dense air. Buy your Painless Performance 60211 Standard Length MPFI Harness for 1996-2000 GM Vortec 7.4L V8 at Amazon! They have a high strength carbon steel housing and a high performance rolled seam that exceeds OEM pressure requirements. For this one, I would want you to send your PCM into us to be done. 1 cat is gone already and the other is gutted i am taking it off next week when i get a chance. I have Bosch Gen III injectors; Volant Air intake; and 3 exhaust. Our typical turn around time is 2-3 business days. Most generic tuners only change very basic parameters within the computer, whereas UltraPower Tuning changes approximately 400 parameters including both engine AND transmission settings. Inexpensive and fairly easy to install, a windage tray will help to keep oil in the sump where it's supposed to be and can even help to extend bearing life by keeping the rotating assembly in balance. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. It is bone stock except for tow mirrors and Kodiak door handles on all 4. I have a 1999 3500 Chevy crew cab with the 7.4l 454 Ive got Gibson headers true dual exhaust with flow masters no cats. Weve seen a few 1996-1997 PCMs with this issue. Is there a way you could tune that out completely or as much out as you possibly can? 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. I borrowed a friends TBI 454 dually to pull my blazer one time and it impressed the **** outta me. Roller Cam, .483 Lift . 454 L29 Vortec Engine Performance | Team Chevelle 95K views 2 years ago WESTECH PERFORMANCE GROUP LETS TALK TORQUE! Why a motorhome? Vehicle Monitoring and data-logging like no other! A cold air induction setup will feed the engine cooler and more oxygen-dense air. 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. The Official Vortec 454 Info thread - GMT400 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. Free shipping. If you can supply me with your VIN and any part #'s that are on the ECM I can do some research. Banks iDash: SuperGauge & DataMonster. Is there anything to be gained within my parameters? Without going into the engine, they make a supercharger kit for it, I know whipple use to. It is a redesigned Chevrolet Big-Block engine and was introduced with the 2001 full-size pickup trucks. BBK Performance Parts 1710-XC GM VORTEC 305/350/454 80MM POWER PLUS Can you reprogram and net me the same HP & TQ numbers as the L29? Parts overview- James L29 Vortec 454 build Ep2 - YouTube 0:00 / 19:37 Parts overview- James L29 Vortec 454 build Ep2 20,387 views Oct 10, 2019 391 Dislike Share Save Dick Hamm 4.68K. Hi Warren, that is definitely something we can tune for. Even stock we see impressive gains but even more so with the Banks PowerPack installed. No where near diesel power my ass. way stronger than a stock 12v, 6.5, & 7.3 powerstroke by far!!!! Windage trays are thin, sheet metal plates that fit over the bottom of the main caps and act as a barrier between the oil in the pan and the crankshaft counterweights. 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". It is not 4x4. The UltraPower ECM performs very well on both stock engines and ones that have been upgraded with other modifications. The state of California requires that this warning be posted for people purchasing products that reside in California. It was utilized in the Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, and Chevrolet Express. Body Diameter: 16 mm. I have a few questions so bear with me here. 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). The compression was plenty low for use with the blower, but the extra power it provided would eventually be multiplied by the boost. The Vortec enhancements simply allowed GM to pass smog at a higher RPM. The truck does not need to be emissions compliant. BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. 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 currently out of clean/painted cases for the PCM's. For this test, the motor was configured with an Edelbrock RPM Air Gap intake and Holley 750 carburetor. 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. will your new part ecm work on this motorhome. Buy your Big Autoparts Ignition Distributor Set DR474 DR331 at Amazon! I am ready to pull the trigger if I continue to run 87 octane fuel. no. That being said, the threads on the net are pretty old. Install a high-flow air filter and a cold air intake. Unfortunately this is not something that we offer. These fit: 1966-1998 Chevrolet & GMC 6.0L, 1970-2000 Chevrolet, GMC, Pontiac & Mercruiser Marine 7.4L 454, 2001-2009 Chevrolet & GMC 8.1L , Also fits Mercury Marine Big Block 7.4L, 8.1L & 8.2L Engines. How much can you get them for? PART NO. 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? Bosch p/n: 0280155884. To others, the 7.4 Vortec 454 big-block was the perfect engine at the wrong time. 454 Vortec - What happened to the horsepower? - Google Groups 7.4 and 8.1 vortec hp and tq ratings | Diesel Place 4 Bolt Main GM Factory Vortec, Edelbrock's Performer Multi-Point EFI. It was not a good moment to debut a big cubic-inch big block designed for performance vehicles, but the Chevy 7.4 made an impact nonetheless. 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. Motorhome Performance Parts and RV Upgrades - BanksPower 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. Check if this part fits . Topping the engine is a borrowed four-barrel Holley XP carburetor. The single core from CXRacing featured 3.5-inch inlet and outlets and had been tested previously at over 1200 hp and 25 psi. Buy your ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set at Amazon. Install an aftermarket windage tray in your engine. 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/. If i buy a tune do i need to send my ECU 1st or can you send me one then when i get the ECU from you send mine back to get my 100 back? I am doing a full engine swap from a damaged motorhome to my older motorhome. Yes, all gains listed are with 87 octane gas. A stock 12v ain't got **** on a BBC. Oxygen sensor modifications can be done. 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. Only a set of dyno headers and an electric water pump were different. Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score Chevrolet BB Gen 6 454-502, '96-'00 Camshafts - Competition Products $119.95. 1996 c3500 dually 7.4 with 5 speed. Chevrolet 7.4 Vortec was a modern-day improvement of the firms most legendary big block. If you send it to us you avoid paying the core charge. Engineered specifically compatible with General Motors Vortec V8 engines,specifically compatible with General Motors Vortec V8 engines,Offering the quality,reliability,durability. It is a re-programmed ECM, either you send yours in or we send you one on a core exchange. As long as the engine is well maintained, reliability is not affected. 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. 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. 1999 vortec 454 7.4 - HPTuners If you want to take full advantage of the cam swap then a custom tune will be needed to address that. We do not, however, have core PCM's for this engine so you would have to send your PCM in for the flash. The Muscle Automobile Period had come and gone before the 7400 series debuted. In 1996, when all of GMs models received excellent reviews due to a new range of engines that added power, every one of its vehicles were praised by clients. GMC 7.4L/454 JET Performance Parts and Accessories I would like to get the o2 delete. If you don't mind a "dirty" PCM case then we can take care of an order for you. It won't hurt anything to run like that. We can do the tune now with the Banks kit taken into consideration for down the road. We wanted to make sure the air/fuel and timing curves were spot on before running the supercharged monstrosity in anger. The same 290 horsepower that was standard for all GM cars in 1980 was maintained throughout the decade. UltraPower GM / Workhorse 7.4L (454) Custom Tuning - Ultra RV Products Right now I have a CAI, 2" full length headers, 3" dual exhaust and EGR delete. 1997 gmc 3500 cc dually. How To Add 70 Percent More Power to A Chevy 454 V-8. My question is that I have a 1998 7.4 parts truck. Feel free to call me with your vin # handy if you would like to get your order in. For GM vehicles, the Vortec variant increased power by 60 horses. This is only 1 of the many changes that we make with our programming to achieve great power gains. Installed E3 spark plugs which seemed to help. I just bought this 97 suburban 4wd with the bbc. Purchase a Chevy 454 crate engine online from JEGS High Performance. 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. Probably cause no cats. Check if this part fits . See listing details. 7.4 Vortec Specs Chevy based the 7.4 Vortec off their 454 big block engine, hence the name 454 Vortec. Dodge RAM 3.0 Ecodiesel Performance Upgrades Guide, Best Ford 6.7 Powerstroke DPF Delete Kit Upgrade. Chevrolet Performance's 454 HO crate engine is a Big-Block bargain - an affordable engine with performance specs that will make you think it's 1970 all over again. That is the difference between cookie-cutter and custom! All fuel injector specifications meet or exceed the manufacturer's specification standard. performance, modifications, classifieds, troubleshooting, maintenance, and more! Sequential-Port Fuel Injection (454 only had 2 Throttle Body Injectors) 3. I have a 1996 Suburban K2500 with the L29 engine and 4l80 trans. 7.3 is 250-275/505-525 stock. They said they no longer support my RV and had no parts available. 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. It gets you an EGR blockoff plate for the Vortec 4.3/305/350 engines. performance upgrades for 88-94 TBI chevy truck.? Thank you. Cost is $395 plus a $175 core charge which is refundable. 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. K&N fuel injection performance kit. It is located on top of the radiator support and has 4 connectors going into the back of it. Would you be able to tune this on a new computer so I can keep the original? This is perfect for an otherwise stock engine as the gains are the best bang for the buck by far. Also I have Thorley tri Y hearers on mine will that effect the tune? 454 vortec or 8.1 swap? | Chevy Impala SS Forum Elgin Industries set of (16) Hydraulic Roller Valve Lifters compatible replacements for Big Block Chevy GMC & Pontiac engines. oh, by the way, this is a low mileage engine, single owner and I have taken excellent care of this truck. Some parts are not legal for use in California or other . It would be a good idea to re-tune for the Banks and injection systems. If you would like to place your order feel free to give me a call at 800-417-4559. It is an all-iron engine (block and heads . Wiring is the same. Whether your power boat is running boost or naturally aspirated, we have the correct performance parts for your application. When you buy a single component or a complete kit, like a camshaft, you must ensure that it is suitable for your car. Could you do a downstream 02 sensor delete? 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. Been reading the net the last few days on power upgrades for my truck after reading the "best year diesel" thread on here.