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Mostly people saying to try this and try that. This is perfect for an otherwise stock engine as the gains are the best bang for the buck by far. 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. 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. In 2001, production of the 7400 line was discontinued. Engine is in stock configuration with no upgrades. Mark McNabb was a contributor at TopSpeed from 2013 to 2018. From my experience, the HyperTech programmer for those engines is pretty generic and does not make very many changes in the programming. 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. Make use of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. Just need a working substitute, no enhancements really needed. 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 think they were made before Chevy started using real tornados. Top 4 Best Cam For Stock 454 Big Block Review - Tools BIble You can pretty easily get 400+ horses out of that thing and it be streetable. It will be plug and play. Yes, as long as it is a "J" (8th digit of the VIN) Vortec 7.4L, we can tune it. Opinions On the 7.4 / 454 Suburbans and engine - Expedition Portal Thank you. Injector type: US-CAR, saturated. Following up from previous question, here is the VIN 1GDG6H1BXYJ907917 and #s off the ECM, 09384681, sev. Makes NO permanent changes to your vehicle's computer! 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 Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? Sorry I dont have the VIN, the truck is not local, I have a 1998 2500 7.4 Vortec GMC Suburban. BBK Performance Parts 1710-XC GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. If they were cheap enough, sure. 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. Nothing I was finding really listed ACTUAL upgrades. 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 previous owner had the engine rebuilt in 2012 and tells me they installed an RV cam but I am not sure which one. The peak numbers jumped from 791 hp and 713 lb-ft with no intercooler to 847 hp and 761 lb-ft with the intercooler. 4 Bolt Main GM Factory Vortec, Edelbrock's Performer Multi-Point EFI. We will safeguard your e-mail and only send content you request. 1996 c3500 dually 7.4 with 5 speed. Stage 1 Upgrade for Mercury 525 EFI. Short tube headers won't do anything for you but long tube headers would he beneficial. Can i tell if my RV has this already? For this test, the motor was configured with an Edelbrock RPM Air Gap intake and Holley 750 carburetor. Any "recalibration" would require sending your ECM to us for programming changes. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. If I send yall Parts list of what kind of cam, injectors, pistons, etc. 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. This ignition system upgrade will allow you to set your distributor for a little more timing advance. Very interested in this. Im interested to know if you change the shift points or anything like that cause I have a shift kit in the transmission already. To further improve power, we also upgraded the stock hydraulic roller camshaft with an XM284HR from COMP Cams that offered .547 lift, a 230/236-degree duration split and 112-degree lsa. Vortec Big block performance upgrades. - GMT400 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. In addition to the powerful YSI supercharger, the kit included a cog-drive system to eliminate belt slippage under boost. 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. If product is incorrect for the provided VIN we will contact you to revise order. 454 L29 Power Upgrade. 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. 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? The proper application of boost to any motor is never inexpensive, and our Vortech YSI supercharger was not what could be considered low-buck, but it was epic in its effectiveness. Common Problems with Chevy 454 Vortec (Explained!) Yes that would be fine, you would just need to call in to our service department and schedule a date :). 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. Use a set of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. 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. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. Change to a synthetic oil that is light-weight. I was interested in your tune for this engine and was wondering what your best guess on the horse power / toque gains would be. Programmers. Prices increase after 2/28. 454 Project Tow Beast - TBICHIPS | TBI Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. 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*. I straight wired it to test it and it will run. And performance tune? I assume the module is a pre-programmed ECM chip that replaces the stock ECM chip. It can be done fairly cheap , power for days and 15-20mpg, I repeat. Reasons to buy: I have had a hard time finding much of anything for these engines. 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. 16238212. It is bone stock except for tow mirrors and Kodiak door handles on all 4. Pace Performance Products in Ohio put together a decent upgrade. 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? If you don't mind a "dirty" PCM case then we can take care of an order for you. The truck does not need to be emissions compliant. m) at 3200 rpm. Budget Vortec Head Upgrade: Easy, Money-Saving Benchtop Mods Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? 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. As long as you don't have any emission systems removed, you will pass without any issues. BBK 1710 80mm Throttle Body - High Flow Power Plus Series GM Vortec 305 When you purchase, just let us know any modifications or requests and we can accomodate. The 8th digit of your VIN is the letter "D" which designates your engine as a 7.4L LP4 which is different from a normal L29 7.4L. I have a vortec454 in a non smog az tow vehicle. Chevy 8.1 Vortec Ultimate Engine Guide - Specs, Performance, Problems It is a redesigned Chevrolet Big-Block engine and was introduced with the 2001 full-size pickup trucks. If you continue to use this site we will assume that you are happy with it. It specs out at 265 HP@4500 RPM and 340 ft/lbs of torque@3500 RPM. O-rings: Top and bottom, 14.5 mm - Viton. We would just need to know the tire size you are running and if the rear gear ratio was ever changed from factory. 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". Well, they can be had stupidly cheap, not counting the extra work it takes to remove the engine and then dispose of the lifeless RV. 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. A stock 12v ain't got **** on a BBC. I plan on the injector and ignition work done in march. Also I dont have either downstream 02 sensors. 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. It is unlikely that the Vortec 454 accessories will clear the hood. Truck has k&n air filter, 2.5 inch exhaust (no cats), e3 spark plugs and 8.5mm plug wires. 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. The Muscle Automobile Period had come and gone before the 7400 series debuted. Chevrolet Performance 454 HO 454ci/438HP Crate Engine - JEGS I didnt see anything on the site but that doesnt mean I saw everything. Technical Specifications: No filter cleaning required for up to 100,000 miles. Naturally, the truck-based 454s. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. Yes our tuning does work for trucks as well. Is there any way I could send you that one as a core in return for one to work in my 2000? no. The tuning is custom to each vehicle depending on calibrations, modifications and any special requests. youll have to stick to a torque cam because of the computor needs vacuum (speed density) headers will help greatly. When it shows 55 MPH your actually going about 57 to 58 MPH. Overall Length: 3 inches, 74 mm. It is a re-programmed ECM, either you send yours in or we send you one on a core exchange. Don't know how tuning would work. Boneyard Boost: Vortech 454 - Street Muscle Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score Install an aftermarket windage tray in your engine. Dedicated to making your Chevy Truck bad***. If you choose the core option we will program an ECM here and ship to you. . Will the UltraPower tune, give me the "best bang for my buck" performance increase? If you want to take full advantage of the cam swap then a custom tune will be needed to address that. How To Add 70 Percent More Power to A Chevy 454 V-8 - Top Speed 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. I read in earlier questions asked that you had stopped doing the earlier ones. So, I am contemplating upgrading this thing for more power, or selling and buying a Dmax. Only a set of dyno headers and an electric water pump were different. my ecm has to be replaced. For this one, I would want you to send your PCM into us to be done. The Gray, the green with white strip and the black test grounded. JavaScript is disabled. performance upgrades for 88-94 TBI chevy truck.?