$119.95. We use the original black box PCM's. 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. The engine receives cooler, more oxygen-dense air through a chilly air induction system. 1999 Crew cab dually, 454 vortec, AUTOMATIC. 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. I know they were installed in trucks from 96- 00?. I fought this truck with the cats deleted and air pump disabled. The cooler charge air (plus tubing length and bends) dropped the peak boost pressure from 19.1 psi down to 17.7 psi. I list that this RV was originally equipped with a 4.63 rear gear ratio and a tire size of 225/70R19.5. Parts overview- James L29 Vortec 454 build Ep2 - YouTube It will not void your factory warranty, and does not modify any emissions systems. 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. 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. 2023 Power Automedia. cam with matching torque converter and headers would be easy. It is quite a noticeable difference! 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 stock injectors are fine for our performance tuning. The air filter is easily removed, cleaned, and reused. I have a 1996 Suburban K2500 with the L29 engine and 4l80 trans. Mostly people saying to try this and try that. CHEVROLET 7.4L/454 Parts and Accessories - Summit Racing Equipment watch out for chips as they just bump the fuel curve. We do not go further back than 1996 (OBD2) modules, sorry. I think they were made before Chevy started using real tornados. Can I tune it myself later with my own tuner or is it still a black box like the oem? I'm saving up for the banks power pack system. Would we still get the good price when you get more control modules in stock? Yes we modify the shift patterns to hold the upper gears longer, your shift kit would not interfere or cause issues. 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. Yes, we can tune your ECM. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. In 2001, production of the 7400 line was discontinued. Check if this part fits . The greater the power gains, the bigger the budget. This thing is weak as water. Also I dont have either downstream 02 sensors. The compression was plenty low for use with the blower, but the extra power it provided would eventually be multiplied by the boost. I am certain we can get more power and overall better drivability with our tuning versus your current setup. If they were cheap enough, sure. We can send a pre-programmed ECU on core exchange. 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 . Can you reprogram and net me the same HP & TQ numbers as the L29? To others, the 7.4 Vortec 454 big-block was the perfect engine at the wrong time. Use a set of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. I have a 2000 3500 454. If it is a 1998 then yes you can. The issue with your tachometer would only be fixed if there is an actual issue with your PCM. Whether your power boat is running boost or naturally aspirated, we have the correct performance parts for your application. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. I have been watching lots of posts and things get carried away very quickly about getting big big hp. Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score The truck does not need to be emissions compliant. Seems like it's lacking power towing my boat. This left us with Mark 4, Gen V and Gen VI big blocks to choose from, any of which would work for this project. a good set of headers help to. Chevy Performance BBC L29 Vortec Cast Iron Cylinder Head - JEGS Change to a synthetic oil that is light-weight. I have had a hard time finding much of anything for these engines. At times I get a dtc for bank 1 and 2 too rich. vortechsuperchargers.com. Oil collects on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons), reducing horsepower through parasitic drag. Would this work on 1996 7.4L L29? In the end, we selected a 1999 Gen VI 454 and pulled it from its home in the engine bay of a 1-ton work truck. The C/K 3500's standard engine is a 5.7-liter V8 OHV 16-volt FI engine, and the 454 engine comes as an optional upgrade. I have a 98 C-3500 dually with a Vortec 454. Buy your ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set at Amazon. Topping the engine is a borrowed four-barrel Holley XP carburetor. Most generic tuners only change very basic parameters within the computer, whereas UltraPower Tuning changes approximately 400 parameters including both engine AND transmission settings. Install a high flow air filter and cold air induction intake. Choose FORTEC 4x4 for Jeep Wrangler JL and Jeep Gladiator JT Customizing - Highly trained Specialists Since 1991 Each Jeep we touch brings you the greatest quality, functionality and performance We offer Jeep Turn Key Solutions, Jeep Parts and Jeep Accessories in Partnership with Jeep Dealerships in Atlanta and Florida 98 Single Rear Wheel 3500 7.4 Vortec. 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. I think I am going to swap on a good set of aftermarket heads and change out to an Edelbrock Pro Flo EFI. 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. 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. I have a 2000 GMC school bus with the L21 7400 motor. They left all the original parts in place like the two-barrel carburetor and dilapidated ignition system. Maybe I need to go by the dealer and test drive a diesel or another gasser so I have a comparison. Most ordersare shippedwithin 24 hours from the order date. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? We can even modify these Chevy 454 rebuild kits to your specifications, giving your vehicle exactly what it needs for maximum performance. It was utilized in both performance automobiles and trucks, as well as maritime and industrial applications in various combinations. It won't hurt anything to run like that. $399.99. The K&N raises the horsepower of your 5.7 Vortec crate engine by 45 percent. How to Make Power with a Chevy TBI V-8 - MotorTrend 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. It would be a good idea to re-tune for the Banks and injection systems. I replaced the relay to no avail. You might be able to run an L29 cam, but you will need to consult an engine builder. But don't despair. New 2-Piece Intake Manifold w/Long Intake Runners 7. 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. 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. Recommended 454 TBI modifications | TBI - harristuning.com A stock 12v ain't got **** on a BBC. After installed Ultrapower GM/ Workhorse 1998 7.4l Vortec 454c. 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 read in earlier questions asked that you had stopped doing the earlier ones. Cats have been removed as well as smog pump. I bought this truck brand new. This engine has two valves per cylinder and features multi-port fuel injection. I have the parts list and see one item called 01-412-8 hyd roller cam for $315. 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. But like any stock engine, there was tons of power left to be squeezed out. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets. All other modifications are going to be expensive, labor intensive and still not necessarily yield the same results. I'm is Arizona and I'm planning a trip this month after Bonneville, to Aberdeen, home town, and Centralia, still have relatives there. It debuted in 1970 as an upgrade of the 427 big-block V8 engine. Are the tunes generic or do you change different things for different people? 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 BBK Performance Parts 1710-XC GM VORTEC 305/350/454 80MM POWER PLUS The upgraded Vortec 7400 is a 7.4L V8 OHV 16V-volt FI engine. 454 Vortec - What happened to the horsepower? - Google Groups I have a 1999 Fleetwood Flair with a 7.4 Workhorse. These modifications will improve net mileage without sacrificing power, resulting in better overall mpg. We set it for the best performance in all conditions, it is not user adjustable. You can source the 454 HO directly from Chevrolet. We immediately checked the latest 8.1L off the list due to lack of availability and parts cross over. As you can tell, it doesn't deliver much. Budget Vortec Head Upgrade: Easy, Money-Saving Benchtop Mods The Muscle Automobile Period had come and gone before the 7400 series debuted. I straight wired it to test it and it will run. These Chevy 454 Vortec engines made 290 horsepower and 410 lb-ft. Chevy 454 HO Crate Engine Vortec 7400 engines were the final version of the 454 used in production vehicles or trucks. Whats the stock numbers on a Vortec 454? 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 $. 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. Opinions On the 7.4 / 454 Suburbans and engine - Expedition Portal The engine displacement in liters is 7400, which is readily changed to 7.4 liters. A cold air induction setup will feed the engine cooler and more oxygen-dense air. The vin is for a 2004 gmc 1500 with a 5.3 vortec. It is not 4x4. How To Add 70 Percent More Power to A Chevy 454 V-8 - Top Speed Roller Cam, .483 Lift . 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. Need advice: 454 VI L29 Build | Hot Rod Forum 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. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Install an aftermarket windage tray in your engine. 454 L29 Vortec Engine Performance | Team Chevelle 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 is perfect for an otherwise stock engine as the gains are the best bang for the buck by far. Best, least expensive way to get more power out of this engine is with our custom tune. I have a 1998 Winnebago Brave on a p30 chassis with the 7.4 with a Banks Power Pack. That represents a 70-percent increase in horsepower. Free shipping. Now, that poses the question: what would you shoehorn this big-block Chevy into? I installed a K&N replacement are filter in the stock air box. 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. So, I am contemplating upgrading this thing for more power, or selling and buying a Dmax. Does this upgrade have a negative or positive impact on engine life? It may not display this or other websites correctly. 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*. The only weak link is the peanut port factory heads and the sprinkler style fuel injection. 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 ?? 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. All above engines equipped wit Hydraulic Roller Lifters. I THINK I want a diesel until I look at the prices. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. 454 L29 Power Upgrade. Is there anything to be gained within my parameters? Free shipping. Pace Performance Products in Ohio put together a decent upgrade. Eric, we can program for EGR delete, cost would be $ 495.00 and would also include the performance tune . Also I want to send you guys mine as core but I wanted to get yours first so Im not without my truck and if something goes wrong I can plug my factory one back in, so can I wait to send mine till after I get yours? "SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines. Thanks. 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. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. 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. Buy in monthly payments with Affirm on orders over $50. Truck has k&n air filter, 2.5 inch exhaust (no cats), e3 spark plugs and 8.5mm plug wires. With our tuning, peak horsepower is at about 3500 RPM and peak torque is about 2500 RPM. This 1-ton dually truck is used for hauling a large slide in camper and atv trailer. Naturally, the truck-based 454s. My next upgrade is going to be exhaust. JavaScript is disabled. How much can you get them for? Thanks. 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. UltraPower GM / Workhorse 7.4L (454) Custom Tuning - Brazel's RV We can tune stock or modified, not a problem. The tune will definitely wake the truck up. will your new part ecm work on this motorhome. We will set the tune up based on your modifications and requests. If you want to send your PCM in that you know is functional, that is the best way to do it. 95K views 2 years ago WESTECH PERFORMANCE GROUP LETS TALK TORQUE! I'm interested in the available upgrades for the vortec 454. 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. Install an aftermarket windage tray in your engine. Also how much benefit do you think I would gain by going aftermarket catback exhaust.