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At this point the engine run well, with no code problems. And i was wondering what benefits will i see with my 454 i have a new jasper motor with upgraded injectors and full exhaust. I have a uhaul topkick with the 7.4. 454 L29 Vortec Engine Performance | Team Chevelle The compression was plenty low for use with the blower, but the extra power it provided would eventually be multiplied by the boost. 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. Body Diameter: 16 mm. 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 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. 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. 7.4 chevy engine in georgia boy pursuit motorhome. Do you have identifying marks on the ECU? Chevy 5.7 Vortec Engine Performance Upgrades 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. 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 . Also, is shipping included both ways? Check out their web sight Bankspower.com Prices increase after 2/28. K&N Performance Fuel Filters are built for high flow rates and capacity while they provide outstanding filtration. 4 Bolt Main GM Factory Vortec, Edelbrock's Performer Multi-Point EFI. We have no issues with tuning a higher mileage engine as long as it is in good running condition. Gains with the modifications you have done would be around 45 HP/ 45 TQ. Could you do a downstream 02 sensor delete? Solenoid resistance: 12.5 Ohms. 454 Vortec - What happened to the horsepower? - Google Groups I didnt see anything on the site but that doesnt mean I saw everything. If you choose the core option we will program an ECM here and ship to you. Can you tune my new 2000 ECM and will it work without the original key and ignition harness. Buy in monthly . 1999 vortec 454 7.4 - HPTuners A cold air induction setup will feed the engine cooler and more oxygen-dense air. 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. 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. 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. I have a 2000 OBS Chevy quad cab with a 454 Vortec. I just bought this 97 suburban 4wd with the bbc. Turn around time is 1-2 business days. Are there any gains to be had by programing and adding headers to my truck? My question is what cam you would recommend for towing? Yes you are correct that there is torque management which "pulls" back power when taking off from a stop. Its 567 horsepower of usable, reliable, fun power that anybody on a budget can build. Do you have any videos of how to locate and remove my ECM? 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. We do not, however, have core PCM's for this engine so you would have to send your PCM in for the flash. Another popular upgrade is changing to Bosch 4 hole injectors. Using 3.5-inch aluminum tubing from CXRacing, we configured the intercooler between the YSI supercharger and the blow-through carburetor bonnet. Performance. The Official Vortec 454 Info thread - GMT400 At times I get a dtc for bank 1 and 2 too rich. 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. However, this engine was intended to provide significant towing power for CAFE-exempt vehicles, so there is still room for improvement. Can you reprogram and net me the same HP & TQ numbers as the L29? 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*. Reference core exchange, what is the time limit for you to receive the exchange? Also I have Thorley tri Y hearers on mine will that effect the tune? Oil collects on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons), reducing horsepower through parasitic drag. Chevy 454 Rebuild Kits for Complete Street Performance! Would this work on 1996 7.4L L29? Thank you. Stronger shift points for towing and power. Step 2 Install a high flow air filter and cold air induction intake. 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. What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? It was the same size as the outgoing 7.4 L V8, but got a boost in power and more towing capacity. Would you be able to tune this on a new computer so I can keep the original? Anything that will help the performance. Is it possible to upgrade the ECM on my 1994 Fleetwood Southwind Storm 454 TBI w/4L80E trans? A few weeks ago I bought a very low milage 454 Gen. VI L29 Vortec engine with hydraulic roller. Mark McNabb was a contributor at TopSpeed from 2013 to 2018. It will not void your factory warranty, and does not modify any emissions systems. Free shipping. Once the order is placed and you have paid for a core, we will program a PCM here and ship it with a return shipping label for your core. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. It is quite a noticeable difference! The 8.1 Vortec was produced to compete with Dodge's 8.1 Magnum V10, and Ford's V10 Triton engines of the time. Just make sure to include that information in the order comments and we can make that happen for you :). 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". There is a small red wire that has never been connected to anything. I have a 2000 OBS Chevy quad cab with a 454 Vortec. Opinions On the 7.4 / 454 Suburbans and engine - Expedition Portal Common Problems with Chevy 454 Vortec (Explained!) 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. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. I've made several performance upgrades myself, but are always looking for something better. How to Pick Up Big Power On a Junkyard 454 With a Simple - MotorTrend CAN YOU REALLY MAKE DECENT POWER WITH A SET OF PEANUT PORT BBC HEADS?. I have a 2000 3500 454. Oxygen sensor modifications can be done. My goal is to improve torque and trans efficiency then MPG. We gain on average 45-50 horsepower and 50 ft. lb. These modifications will help to generate more horsepower without adversely affecting fuel efficiency, which will ultimately increase net mileage. 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. Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? A stock 12v ain't got **** on a BBC. I've noticed a significant performance uptick, but it seems to fall flat in the upper mid-range, almost seems like it could use a MSD multi spark discharge, I don't know, but I'm considering having a dyno test to see what is happening. Is there anything to be gained within my parameters? Free shipping for many products! This left us with Mark 4, Gen V and Gen VI big blocks to choose from, any of which would work for this project. Roller Lifters 5. Apr 14, 2016. The stock Vortec iron head will not tolerate more than .440-inch lift. We can tune it if you can build it :). Chevy Engine Kit - Chevy Stroker Kit, 454 Big Block, 454, 496 - Coast High Most ordersare shippedwithin 24 hours from the order date. 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. Would we still get the good price when you get more control modules in stock? Topping the engine is a borrowed four-barrel Holley XP carburetor. Eric, we can program for EGR delete, cost would be $ 495.00 and would also include the performance tune . In an effort to further drop the inlet air temps, we installed a makeshift air-to-water intercooler. We have a complete Banks Power System and Banks Air Flow. Vortec 454 7.4L Fuel Injector Upgrade, Replacement old injectors with As long as you don't have any emission systems removed, you will pass without any issues. The single core from CXRacing featured 3.5-inch inlet and outlets and had been tested previously at over 1200 hp and 25 psi. At the relay the Orange wire is hot with 12 volts continually. 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. Full Forum Listing. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. I heard these trucks have a torque management system does this computer give my truck back all its power? Im doing a full build on the motor Ive been told that these injections systems dont do well with these kind of upgrades. Headers exhaust. How much will the customization cost me? A cold air induction setup will feed the engine cooler and more oxygen-dense air. If it does work what would do for pulling and climbing hills? The terms ECM, PCM, and VCM are all used to describe the engine computer by various manufacturers, yours is located above the radiator . 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. 7.3 is 250-275/505-525 stock. As long as the engine is well maintained, reliability is not affected. Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. To others, the 7.4 Vortec 454 big-block was the perfect engine at the wrong time. Only a set of dyno headers and an electric water pump were different. 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 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 do still have all the O2 sensors but would like to delete them if possible. They also installed roller lifters, heavy springs and chain/gears. I installed a K&N replacement are filter in the stock air box. The peak numbers jumped from 791 hp and 713 lb-ft with no intercooler to 847 hp and 761 lb-ft with the intercooler. Dedicated to making your Chevy Truck bad***. and will it improve my over all power? There should be no reason to ever need to reprogrammed in the future and if you needed a replacement PCM we can take care of that for you. We will safeguard your e-mail and only send content you request. It is located on top of the radiator support and has 4 connectors going into the back of it. Yes, we can tune your L21 for similar gains as with the L29. The air filter is easily removed, cleaned, and reused. 454 vortecgood or bad | Performance Boats Forum 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. These 454 7.4L engines tend to respond pretty well to camshaft changes with good grinds that are designed to produce low and mid-range rpm torque increases. cam with matching torque converter and headers would be easy. You might also want to consider a high voltage coil, high performance 8 mm spark plug wires and a set of quality aftermarket spark plugs to help your engine ignite more of the fuel that goes through it. As you can tell, it doesn't deliver much. The Vortec 454 was touted as having substantially more power. I filled out a form and sent to COMP Cams to see what they recommend and sent an e-mail to Blackbear to see what cams they had experience with since I will need to PCM tune redone. 7.4 Vortec Specs Chevy based the 7.4 Vortec off their 454 big block engine, hence the name 454 Vortec. This cam is designed specifically for the TBI 350 small-block and specs at 194/214 degrees of duration at .050-inch tappet lift with .398/.442-inch lift. 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. 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. I THINK I want a diesel until I look at the prices. 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 want to install a cam while you have the ECU. What type of gains could I expect with a tune for this? 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. They seem to be similar to those used in your RV work. Technical Specifications: No filter cleaning required for up to 100,000 miles. Truck is stock otherwise and runs good just looking for more out of it. 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 ?? Is there a way you could tune that out completely or as much out as you possibly can? We tune the original black box PCM but do not do the 411 swap. my ecm has to be replaced. I have a 1998 Winnebago Brave on a p30 chassis with the 7.4 with a Banks Power Pack. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. 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. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. Without going into the engine, they make a supercharger kit for it, I know whipple use to. performance upgrades for 88-94 TBI chevy truck.? The state of California requires that this warning be posted for people purchasing products that reside in California. . I have a 2000 gmc k2500 with the l29 454. Is it not the same motor from 96 to 2001. 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). I just purchased your UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning. 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. watch out for chips as they just bump the fuel curve. When it shows 55 MPH your actually going about 57 to 58 MPH. Their high performance cellulose glass media traps contaminants such as rust, dirt, scale and other foreign materials. BBK 1710 80mm Throttle Body - High Flow Power Plus Series GM Vortec 305