When taken together, this fairly inexpensive approach can be good for noticeable gains in fuel economy. CHEVROLET 7.4L/454 Parts and Accessories - Summit Racing Equipment That represents a 70-percent increase in horsepower. Buy your K&N PF-1000 Fuel Filter at Amazon! Thanks. Do you have any videos of how to locate and remove my ECM? Will this correct my RPM gauge issue? It would be a good idea to re-tune for the Banks and injection systems. Solenoid resistance: 12.5 Ohms. 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 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?? The single core from CXRacing featured 3.5-inch inlet and outlets and had been tested previously at over 1200 hp and 25 psi. I think they were made before Chevy started using real tornados. Yes, all gains listed are with 87 octane gas. im wanting /needing power and torque. 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 windage tray, which is cheap and simple to install, can help to keep oil in its proper location by keeping the rotating assembly balanced. Buy in monthly . 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. The intercooler did indeed drop the inlet air temps before the carburetor from 248 degrees to 111 degrees and the cooler charge dramatically improved the power output. See listing details. 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. Can you tune my new 2000 ECM and will it work without the original key and ignition harness. I have the parts list and see one item called 01-412-8 hyd roller cam for $315. I have a 2000 GMC school bus with the L21 7400 motor. We are currently out of clean/painted cases for the PCM's. 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. The Vortec 454 was touted as having substantially more power. 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? Would we still get the good price when you get more control modules in stock? Even better than the big peak gains was the fact that the cam swap . Use a set of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. To find out just how much the 30-year-old behemoth could muster, they took it to Westech Performances dyno room. Can you reprogram and net me the same HP & TQ numbers as the L29? Chevy 454 Rebuild Kits for Complete Street Performance! Chevy 8.1 Vortec Ultimate Engine Guide - Specs, Performance, Problems We are running about 2-3 days on turnaround right now. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? Thinner oils allow the internal engine components to spin more freely and effectively, which improves their function. Rowe studied engineering, philosophy and American literature at Central Florida Community College. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. 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. 7.4 and 8.1 vortec hp and tq ratings | Diesel Place We have a complete Banks Power System and Banks Air Flow. If you would like to place your order feel free to give me a call at 800-417-4559. The vin is for a 2004 gmc 1500 with a 5.3 vortec. 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. I'm saving up for the banks power pack system. Top 4 Best Cam For Stock 454 Big Block Review - Tools BIble 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. Oxygen sensor modifications can be done. I tow a large fifth wheel trailer with RPMs between 1800 to 2500 typically. . Recommended 454 TBI modifications | TBI - harristuning.com Or if I pay to send in, is the return shipping included in the $495? I have a 2000 OBS Chevy quad cab with a 454 Vortec. We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. But like any stock engine, there was tons of power left to be squeezed out. I would like to get the o2 delete. 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. Will the UltraPower tune, give me the "best bang for my buck" performance increase? They have a high strength carbon steel housing and a high performance rolled seam that exceeds OEM pressure requirements. They said they no longer support my RV and had no parts available. As long as the engine is well maintained, reliability is not affected. 2000 Chevy Truck 454 Specs | It Still Runs Mfg Performance Parts www.straubtechnologies.com www.distributorgears.com I straight wired it to test it and it will run. It was bone stock 2x4 extended cab dually. 4 Bolt Main GM Factory Vortec, Edelbrock's Performer Multi-Point EFI. While we do get reports back of fuel economy gains, that is something we can not guarantee as there are just too many variables that can affect an RV's fuel economy. It won't hurt anything to run like that. If it does work what would do for pulling and climbing hills? Gains will be on par with what we achieve with the RV's so it will very well suited for towing. If you send it to us you avoid paying the core charge. That is the difference between cookie-cutter and custom! 4.56 might be abit tall. Chevy 454 Engine Guide - 7.4L V8 Specs, Problems, Performance 2. That being said, the threads on the net are pretty old. Their high performance cellulose glass media traps contaminants such as rust, dirt, scale and other foreign materials. (454 used only MAP) 2. JavaScript is disabled. . Step 2 Install a high flow air filter and cold air induction intake. My tech who does the programming is out of town this week so it would get done first thing next week if you wanted to go ahead with it. Parts overview- James L29 Vortec 454 build Ep2 - YouTube 454 vortecgood or bad | Performance Boats Forum Yes, we can tune your ECM. How to Get More Horsepower From a 360 dragster engine image by Robert Young from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. A/T Flywheel, Hedman TEMS headers, and all the other good stuff that goes with a long block. In an effort to further drop the inlet air temps, we installed a makeshift air-to-water intercooler. 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. After the normally aspirated testing, we replaced the 750 Holley with a dedicated blow-through 850 Holley carburetor from Carb Solutions Unlimited (CSU) and installed the Vortech supercharger kit. I have a 2000 gmc k2500 with the l29 454. I recently ordered an ecm for a 7.4 vortec and was very impressed. Injector type: US-CAR, saturated. Please just leave in the order comments your requests to be done. what features will i gain with this new unit. To others, the 7.4 Vortec 454 big-block was the perfect engine at the wrong time. At the relay the Orange wire is hot with 12 volts continually. Its amazing what some bolt-on parts can do! Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? 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). With the baby stock cam they made 290hp and 415 ft lbs of torque. We appreciate it but we only specialize in the big block engines. Headers exhaust. Thank you. I know they were installed in trucks from 96- 00?. Buy your Big Autoparts Ignition Distributor Set DR474 DR331 at Amazon! Check for Availability: $349.95. youll have to stick to a torque cam because of the computor needs vacuum (speed density) headers will help greatly. I will be sending you my ECU. vortechsuperchargers.com. 1999 Crew cab dually, 454 vortec, AUTOMATIC. Oil collects on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons), reducing horsepower through parasitic drag. If you want to take full advantage of the cam swap then a custom tune will be needed to address that. Switch to a lightweight synthetic oil. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidaysareprocessed on thenext business day. If they were cheap enough, sure. Programmers. 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. I had a 7.3 F250 about 8 years ago and I really think the ol Chevy would run with it or out run it. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. A few weeks ago I bought a very low milage 454 Gen. VI L29 Vortec engine with hydraulic roller. If you don't mind a "dirty" PCM case then we can take care of an order for you.
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