It debuted in 1970 as an upgrade of the 427 big-block V8 engine. Oct 25, 2004 Do you guys know anything about the L29 Vortec motor. I would like the biggest bang for the $. It was the same size as the outgoing 7.4 L V8, but got a boost in power and more towing capacity. Can you reprogram and net me the same HP & TQ numbers as the L29? 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. That just won't do. The stock Vortec iron head will not tolerate more than .440-inch lift. Step 2 Install a high flow air filter and cold air induction intake. 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: Gasoline engines do not require different settings for different conditions like a diesel engine does. We are running about 2-3 days on turnaround right now. $360.56. The ignition timing was dropped to 21 degrees and after adding a few jets to the carburetor, we were rewarded with some serious power. Really? I have a 2000 3500 454. Is it possible to get the newer 0411 with your tune for my truck. This ignition system upgrade will allow you to set your distributor for a little more timing advance. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. cam with matching torque converter and headers would be easy. Im interested to know if you change the shift points or anything like that cause I have a shift kit in the transmission already. Yes, we tune for 87 octane unless a higher octane is requested. 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 ?? 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. The Gray, the green with white strip and the black test grounded. We removed the factory EFI injection, and replaced it with simple carburetion. Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? The terms ECM, PCM, and VCM are all used to describe the engine computer by various manufacturers, yours is located above the radiator . This upgrade will not only improve overall top end power but it also . We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Thinner oils allow the internal engine components to spin more freely and effectively, which improves their function. Install a high flow air filter and cold air induction intake. 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. I have had a hard time finding much of anything for these engines. Buy your Painless Performance 60211 Standard Length MPFI Harness for 1996-2000 GM Vortec 7.4L V8 at Amazon! 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. I do still have all the O2 sensors but would like to delete them if possible. Free shipping for many products! $199.95. 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. 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. If I order a ecm reprogram will this fix my speedometer error too?? Switch to a lightweight synthetic oil. Roller Cam, .483 Lift . 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. 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Return shipping is included , you are responsible for shipping to us , however if you choose the "core charge" and order the ECM , we can provide a return shipping label for your core and deduct from the core refund. Just wondering because Id buy one of those as well. 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. Interested, but don't want to buy one to find out i've already got it :D (my unit has 2 previous owners i think). If you send your ECM in, we can make the necessary adjustments you are requesting. The 1970 Chevrolet 454 was the most powerful with outputs of 360 and 450 horsepower from the LS5 and LS6, respectively. The GM 7.4L UltraPower ECM has long been the ultimate performance modification you can make to your GM 7.4L powered RV or truck with the highest power gains on the market! And what is the final cost of your ECM. 4.56 might be abit tall. 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. Anything that will help the performance. It is not 4x4. Yes, all gains listed are with 87 octane gas. Just make sure to include that information in the order comments and we can make that happen for you :). will your new part ecm work on this motorhome. Whats the stock numbers on a Vortec 454? I recently ordered an ecm for a 7.4 vortec and was very impressed. . Also I dont have either downstream 02 sensors. 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. 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". Buy your ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set at Amazon. It is a re-programmed ECM, either you send yours in or we send you one on a core exchange. 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. Does this upgrade have a negative or positive impact on engine life? Can I reprogram on the fly as conditions change and performance needs warrant a change?? We have a complete Banks Power System and Banks Air Flow. Yes, we can tune your engine for more power, doesn't matter what type of transmission. The tune will definitely wake the truck up. I THINK I want a diesel until I look at the prices. The heads, pistons, and intake are stock. 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. The only weak link is the peanut port factory heads and the sprinkler style fuel injection. Installed E3 spark plugs which seemed to help. I would like to get the o2 delete. Do you offer anything for the 5.3? 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!). 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). We can tune stock or modified, not a problem. Cost would be $495. Every horsepower subtracted as a result of parasitic drag is one less horsepower that wont help your truck travel down the road. The Vortec 7400 as you know lays down 290 HP and 410 LbFt of Torque. 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. Boost your horsepower, torque, throttle response and fuel economy with the advanced Innovative Performance Chip compatible with your Chevrolet Silverado 1500! Mar 20, 2011 #4 M MyBoTy Veteran Member Feb 9, 2002 1,567 Lubbock, Texas USA Reasons to buy: 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. If you want to send your PCM in that you know is functional, that is the best way to do it. 1998 k 3500 454 auto 4:10 Dually..What on earth can I do to get more out of my truck..without mortgaging the house. See listing details. Cats have been removed as well as smog pump. A restrictive or clogged air filter makes the engine work harder to breathe, which reduces efficiency. Oxygen sensor modifications can be done. Maybe I need to go by the dealer and test drive a diesel or another gasser so I have a comparison. I have a 1996 C3500 crew cab dually with a 7.4. 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 just purchased your UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning. Fuel pump doesn't run. 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. 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). Check out their web sight Bankspower.com I just bought this 97 suburban 4wd with the bbc. 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. Your email address will not be published. Probably cause no cats. 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. Another popular upgrade is changing to Bosch 4 hole injectors. "SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines. The Muscle Automobile Period had come and gone before the 7400 series debuted. watch out for chips as they just bump the fuel curve. 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. 3. Hello I have 2000 GMC k3500 Truck. All above engines equipped wit Hydraulic Roller Lifters. The cooler charge air (plus tubing length and bends) dropped the peak boost pressure from 19.1 psi down to 17.7 psi. This is only 1 of the many changes that we make with our programming to achieve great power gains. Weve seen a few 1996-1997 PCMs with this issue. Vehicle Monitoring and data-logging like no other! 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. Is there any way I could send you that one as a core in return for one to work in my 2000? Thinner oil drags less on internal engine parts, helping the engine to spin more freely and run more efficiently. Its 567 horsepower of usable, reliable, fun power that anybody on a budget can build. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! a good set of headers help to. Also how much horse power and torque do these motors have stock? Thanks. We have been doing them on a limited basis, it has been very challenging to find good cores to use. m) at 3200 rpm. The 454 HO crate engine boasts 438 HP and 500 lb-ft of torque. It won't hurt anything to run like that. Stronger shift points for towing and power. Would the retuned ECM provide any performance gains above what are present now? 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 Turn around time is 1-2 business days. Yes, we can tune your ECM. 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? Im also trying to get more out of this engine without tearing into it so I was just hoping this fixed my gauge as well. Chevrolets Vortec 454 was a modern-day evolution of the firms most famous big block. I want to install a cam while you have the ECU. 90 and older is particularly bad and that is largely due to NO OVERDRIVE. 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. I have a uhaul topkick with the 7.4. With the intercooler assembly in place, we once again ran the blown big block in anger with amazing results. After configuring a discharge tube and adding some race fuel, we slowly supplied boost to the boneyard big block. I am upgrading the fuel injectors with the new Bosch III's and the plugs and wires. I am considering your tune for my motorhome. Please contact us directly to set that up at 800-417-4559. If you are placing an order to ship outside the United States, Shipping Insurancewill be required and added automatically at checkout. Although Chevrolet doesn't specifically recommend it for this engine, the extreme slipperiness of a full synthetic will allow you to run a thinner weight oil without worrying about undue engine wear. Apr 10, 2008 #5 M MyBoTy Veteran Member I've installed hypertech power programmer, lower thermostat, gale banks torque tube headers and full exhaust, with hi-flow catalytic converters, shift-kit for tranny and larger external cooler. Naturally, the truck-based 454s. For this test, the motor was configured with an Edelbrock RPM Air Gap intake and Holley 750 carburetor. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. . I called Banks Power last week to try and find out what they recommend. 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! What type of gains could I expect with a tune for this? http://www.cumminsdieselspecs.com/cummins_timeline.html, http://www.internationalpowerstroke.com/timeline.html, http://www.duramaxdieselspecs.com/compare_duramax.html, Tow rig Suspension and Axle upgrades questions (4th Gen Dodge). Can i tell if my RV has this already? 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. We set all the parameters in the PCM, so you will not have a way to make adjustments on your end. So I have a 98 K3500 with the 7.4L and I use it mainly for hauling, but I have began to daily it. The Vortec 454 was touted as having substantially more power. Change to a synthetic oil that is light-weight. 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. Buy your Innovative Performance Chip/Power Programmer at Amazon! I have a vortec454 in a non smog az tow vehicle. You are using an out of date browser. They seem to be similar to those used in your RV work. It is an all-iron engine (block and heads . merci. 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? Now, that poses the question: what would you shoehorn this big-block Chevy into? 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. Hi Warren, that is definitely something we can tune for. im wanting /needing power and torque. I heard these trucks have a torque management system does this computer give my truck back all its power? I think I am going to swap on a good set of aftermarket heads and change out to an Edelbrock Pro Flo EFI. 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. 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? Any thoughts from you technical guys? If you had the proper tuning software, you could tune it yourself later. Feel free to call me with your vin # handy if you would like to get your order in. We are currently waiting on more ECM's to come in to be able to provide them on exchange. If so, is that the unit that sits above the radiator of a 2000 Itasca Suncruiser V32 w/ L29 7.4l (454ci) Vortec? Hot Rod decided to bolt up some typical speed parts. It was also noted to have more power for gasoline engines. If not can a non uhaul ecm be used (ie plugged into the current harness)? Also the torque management. Mark McNabb was a contributor at TopSpeed from 2013 to 2018. FULL RESULTS-GEN 5 454 UPGRADE-STOCK PEANUT PORT HEADS. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. Yes, you can pay the $100 up front core charge and be refunded when you send your original back to us. oh, by the way, this is a low mileage engine, single owner and I have taken excellent care of this truck. 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?? vortechsuperchargers.com. Will the UltraPower tune, give me the "best bang for my buck" performance increase? When you purchase, just let us know any modifications or requests and we can accomodate. Topping the engine is a borrowed four-barrel Holley XP carburetor. As you can tell, it doesn't deliver much. 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 $. The stock injectors are fine for our performance tuning. We appreciate it but we only specialize in the big block engines. 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? Been reading the net the last few days on power upgrades for my truck after reading the "best year diesel" thread on here. Hot Rod And remember, thats all without touching the bottom end. K&N fuel injection performance kit. I wouldn't mind an EGR delete for the part throttle improvement and a cleaner intake, but mostly I would like to keep everything else functioning, I am looking for more torque below 3,000 rpms, ideally in the 1500-2500 range, because almost all of my driving is in that range. You can pretty easily get 400+ horses out of that thing and it be streetable. do you think I could get more power with your ecm re-program? You might be able to run an L29 cam, but you will need to consult an engine builder. Great motor and runs strong with gobs of TQ. Do you have identifying marks on the ECU? Engine is in stock configuration with no upgrades. 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. 1997 gmc 3500 cc dually. 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 only way to know for certain would be to pull the ECM and send to us so we can read it out and check. 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. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. We can do the tune now with the Banks kit taken into consideration for down the road. 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. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. The tuning is custom to each vehicle depending on calibrations, modifications and any special requests. Are the tunes generic or do you change different things for different people? (454 used only MAP) 2. I have a 1999 Fleetwood Flair with a 7.4 Workhorse. They said they no longer support my RV and had no parts available. 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. He eventually figured it out. Oil tends to collect on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons) and reducing horsepower through parasitic drag. The issue with your tachometer would only be fixed if there is an actual issue with your PCM. Install an aftermarket windage tray in your engine. We can also adjust your speedometer to be correct. 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. My next upgrade is going to be exhaust. In 2001, production of the 7400 line was discontinued. Prices increase after 2/28. At times I get a dtc for bank 1 and 2 too rich. You can source the 454 HO directly from Chevrolet. Typical gains are 40-45 horsepower and 45-50 lb-ft torque, 4. Would you be able to tune this on a new computer so I can keep the original? We are not able to assist in providing this PCM. A cold air induction setup will feed the engine cooler and more oxygen-dense air. Do you still tune the 96 ecm? Cost is $395 plus a $175 core charge which is refundable. 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. But like any stock engine, there was tons of power left to be squeezed out. 98 Single Rear Wheel 3500 7.4 Vortec. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. I know they were installed in trucks from 96- 00?. 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. In search of power, GM reverted to the big-block engine design, with a 454-cubic inch displacement. Thanks. It went through different upgrades over the years finally ending with the 454 Vortek which stopped production in 2001. Yes, we could accept the PCM from your '98 as the core. The K&N raises the horsepower of your 5.7 Vortec crate engine by 45 percent. Check if this part fits . These modifications will help to generate more horsepower without adversely affecting fuel efficiency, which will ultimately increase net mileage. Im doing a full build on the motor Ive been told that these injections systems dont do well with these kind of upgrades. 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. 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. Based on experience, we have had good results with Comp Cams 212/218 hydraulic roller camshaft. 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. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. The budget portion of the equation came from a 7.4L Gen VI big-block Chevy straight out of the local wrecking yard. The tire are one size larger than stock to the speedometer is off a little. Et si je devrai faire recalibrer mon ecm? Thanks. I'm interested in the available upgrades for the vortec 454. Purchase a Chevy 454 crate engine online from JEGS High Performance. 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).