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 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. I plan on a couple of cross country trips this summer before the Banks PPB install, so, should I wait for the tune until after the Banks install or do the tune this year? Free shipping for many products! 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". Richard Rowe has been writing professionally since 2007, specializing in automotive topics. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets. TQ with those modifications done. better yet have it tuned (Brian Bosch I believe is the man to talk to about . 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? The great thing about using a blow-though carburetor combination is the intercooling effect you get from the introduction of fuel. 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! It's a nice cam for a 454 big block chevy engine that runs with 1500-6500 RPM Range. 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'm is Arizona and I'm planning a trip this month after Bonneville, to Aberdeen, home town, and Centralia, still have relatives there. Wiring is the same. I know that my question is very reduntant but I need to ask it .I pull a trailer and want a little more tow po1wer. 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. Full Forum Listing. no. I own a 1998 Safari Trek 2830 P32 chassis with an L29 28'7" Class A RV Drivetrain it s completely OEM.. $199.95. 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. Nothing I was finding really listed ACTUAL upgrades. I have a 1999 Fleetwood Flair with a 7.4 Workhorse. Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? Bosch p/n: 0280155884. 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. The state of California requires that this warning be posted for people purchasing products that reside in California. Thinner oils allow the internal engine components to spin more freely and effectively, which improves their function. The tire are one size larger than stock to the speedometer is off a little. When taken together, this fairly inexpensive approach can be good for noticeable gains in fuel economy. And what is the final cost of your ECM. You are using an out of date browser. Dec 18, 2007 . If I send yall Parts list of what kind of cam, injectors, pistons, etc. The 4300 was GMs first Vortec-engine V6, released in 1986 and designed for trucks. The upgraded Vortec 7400 is a 7.4L V8 OHV 16V-volt FI engine. 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. I just put the k&N system on my truck made a huge difference in sound and performance I would deffanitly recomend spending the $250. 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. 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. Later i want to install the banks PPB 49070 package on this motorhome next year. I have a 98 C-3500 dually with a Vortec 454. Will this correct my RPM gauge issue? We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it. The peak numbers jumped from 791 hp and 713 lb-ft with no intercooler to 847 hp and 761 lb-ft with the intercooler. I dont have the 2000 VIN only the VIN from my 1995. 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. . 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Most generic tuners only change very basic parameters within the computer, whereas UltraPower Tuning changes approximately 400 parameters including both engine AND transmission settings. 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. It was also noted to have more power for gasoline engines. Dedicated to making your Chevy Truck bad***. 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. 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*. In addition to the powerful YSI supercharger, the kit included a cog-drive system to eliminate belt slippage under boost. How much will the customization cost me? I replaced the relay to no avail. Been reading the net the last few days on power upgrades for my truck after reading the "best year diesel" thread on here. 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? After installed Ultrapower GM/ Workhorse 1998 7.4l Vortec 454c. If you don't mind a "dirty" PCM case then we can take care of an order for you. 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. It gets you an EGR blockoff plate for the Vortec 4.3/305/350 engines. A cold air induction setup will feed the engine cooler and more oxygen-dense air. 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. At the relay the Orange wire is hot with 12 volts continually. Check if this part fits . 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. Short tube headers won't do anything for you but long tube headers would he beneficial. Dodge RAM 3.0 Ecodiesel Performance Upgrades Guide, Best Ford 6.7 Powerstroke DPF Delete Kit Upgrade. Using 3.5-inch aluminum tubing from CXRacing, we configured the intercooler between the YSI supercharger and the blow-through carburetor bonnet. It can be done fairly cheap , power for days and 15-20mpg, I repeat. How much can you get them for? Solenoid resistance: 12.5 Ohms. We don't however specialize in forced induction applications so we would not be able to help you with that. Not sure if you have any other issues causing low power though because it should outperform the 5.7L, especially towing. 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. 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. I've made several performance upgrades myself, but are always looking for something better. Does this upgrade have a negative or positive impact on engine life? I have a uhaul topkick with the 7.4. Do a 12 swap and be done. So, what are the most common problems with the Chevy 454 Vortec? I tow a large fifth wheel trailer with RPMs between 1800 to 2500 typically. 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. It will not void your factory warranty, and does not modify any emissions systems. We will set the tune up based on your modifications and requests. Check out their web sight Bankspower.com 90 and older is particularly bad and that is largely due to NO OVERDRIVE. I would think that u-haul did not use their own ECM. Is it not the same motor from 96 to 2001. I would like to get the o2 delete. 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. Could you do a downstream 02 sensor delete? Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! Yes, all gains listed are with 87 octane gas. Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score The stock injectors are fine for our performance tuning. I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. 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 I read in earlier questions asked that you had stopped doing the earlier ones. merci. 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?? It is quite a noticeable difference! It is an all-iron engine (block and heads . 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. Thanks. Really? And a k and n filter. If you want to send your PCM in that you know is functional, that is the best way to do it. Yes, we can tune your L21 for similar gains as with the L29. Even stock we see impressive gains but even more so with the Banks PowerPack installed. Do you have identifying marks on the ECU? There is a small red wire that has never been connected to anything. Do you offer anything for the 5.3? The engine receives cooler, more oxygen-dense air through a chilly air induction system. It is unlikely that the Vortec 454 accessories will clear the hood. If so, is that the unit that sits above the radiator of a 2000 Itasca Suncruiser V32 w/ L29 7.4l (454ci) Vortec? Typical turn around is 3-4 days, sometimes quicker. 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!). Install an aftermarket windage tray in your engine. I have a 1996 Winnebago with a P30 chassis and a 454 75,000 miles and runs great. We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. 7.3 is 250-275/505-525 stock. We removed the factory EFI injection, and replaced it with simple carburetion. Oct 25, 2004 Do you guys know anything about the L29 Vortec motor. Thousands of satisfied customers have reported fuel economy increases as well as less transmission downshifting because of the increased horsepower and torque. 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. Thank you. Why a motorhome? Im doing a full build on the motor Ive been told that these injections systems dont do well with these kind of upgrades. Check for Availability: $349.95. $119.95. 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 didnt see anything on the site but that doesnt mean I saw everything. Et si je devrai faire recalibrer mon ecm? I have Bosch Gen III injectors; Volant Air intake; and 3 exhaust. 496 cubic inches. Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? The Vortec 7400 as you know lays down 290 HP and 410 LbFt of Torque. Raylar performance packages allow your 496 to produce massive amounts of power without sacrificing reliability. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. Probably cause no cats. 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. Please see our shipping terms for more information. 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. Buy in monthly payments with Affirm on orders over $50. You may also like. Whats the stock numbers on a Vortec 454? I am certain we can get more power and overall better drivability with our tuning versus your current setup. We've had a lot of issues with 1996 & 1997 PCM's so for the moment we are not tuning those. Originally Posted by PonyKiller87 Ok, sounds just like swapping over the 96-00 vortec 350 to the 0411 as far as the wiring goes. That said, the main internal differences between the L29 and L21 is that the L21 has forged pistons and crankshaft. We are currently out of clean/painted cases for the PCM's. The ignition timing was dropped to 21 degrees and after adding a few jets to the carburetor, we were rewarded with some serious power. Performance. Naturally, the truck-based 454s were tuned for torque, so having nearly 500 pound-feet wasnt a big surprise. Yes, we tune for 87 octane unless a higher octane is requested. Most ordersare shippedwithin 24 hours from the order date. If you are placing an order to ship outside the United States, Shipping Insurancewill be required and added automatically at checkout. I have the 411. 1997 gmc 3500 cc dually. The cooler charge air (plus tubing length and bends) dropped the peak boost pressure from 19.1 psi down to 17.7 psi. Best, least expensive way to get more power out of this engine is with our custom tune. Thanks for any help. Will the UltraPower tune, give me the "best bang for my buck" performance increase? Free shipping. Reading some of your responses I came across one with regards to a 1996. Engine Hotrodders' Lounge Body - Exterior Transmission - Rearend . I am ready to pull the trigger if I continue to run 87 octane fuel. Can you reprogram and net me the same HP & TQ numbers as the L29? The most important changes that are made have to do with spark advance, fueling, transmission shifting and torque management settings.