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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. 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. When taken together, this fairly inexpensive approach can be good for noticeable gains in fuel economy. 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. With the 454, putting in Vortec 350 code and chaning the displacement and enter in the tables/constants/switches appropriate to the 454 is all that is needed. It's a nice cam for a 454 big block chevy engine that runs with 1500-6500 RPM Range. Unfortunately this is not something that we offer. 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. The problem with making more power is that cost and performance often go hand in hand. Yes our tuning does work for trucks as well. Mostly people saying to try this and try that. We would just need to know the tire size you are running and if the rear gear ratio was ever changed from factory. The performance chip is fully compatible with your Chevrolet Silverado 1500 in all trims, including the 2.7L, 3.0L, 4.3L, 4.8L, 5.0L, 5.3L, 5.7L, 6.0L, 6.2L and 7.4L engines. Any "recalibration" would require sending your ECM to us for programming changes. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. Thinner oil drags less on internal engine parts, helping the engine to spin more freely and run more efficiently. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. Or if I pay to send in, is the return shipping included in the $495? Naturally, the truck-based 454s were tuned for torque, so having nearly 500 pound-feet wasnt a big surprise. $399.99. A/T Flywheel, Hedman TEMS headers, and all the other good stuff that goes with a long block. I have a 2000 gmc k2500 with the l29 454. 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. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. We set it for the best performance in all conditions, it is not user adjustable. New 2-Piece Intake Manifold w/Long Intake Runners 7. I am considering your tune for my motorhome. I am doing a full engine swap from a damaged motorhome to my older motorhome. With our tuning, peak horsepower is at about 3500 RPM and peak torque is about 2500 RPM. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. Even better than the big peak gains was the fact that the cam swap . 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 . 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. 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. Vortech Superchargers My next upgrade is going to be exhaust. 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. Just worth mentioning. Truck has k&n air filter, 2.5 inch exhaust (no cats), e3 spark plugs and 8.5mm plug wires. Gains will be on par with what we achieve with the RV's so it will very well suited for towing. The ignition timing was dropped to 21 degrees and after adding a few jets to the carburetor, we were rewarded with some serious power. The heads, pistons, and intake are stock. Chevy 454 Engine Guide - 7.4L V8 Specs, Problems, Performance Buy in monthly . 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. Thanks. Technical Specifications: No filter cleaning required for up to 100,000 miles. 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. 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. What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? 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. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. better yet have it tuned (Brian Bosch I believe is the man to talk to about . Since the cat removal shift points have been wonky. Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score How much will the customization cost me? no. I THINK I want a diesel until I look at the prices. K&N fuel injection performance kit. Though larger than the previous 7.4L models, the unique 8.1L could not utilize the amazing array of performance parts available for the previous three conventional big-block models. Would this work on 1996 7.4L L29? It was utilized in both performance automobiles and trucks, as well as maritime and industrial applications in various combinations. The truck does not need to be emissions compliant. 1999 vortec 454 7.4 - HPTuners 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. Yes, we can resolve your issues. my ecm has to be replaced. Hot Rod decided to bolt up some typical speed parts. Cost would be $495. Short tube headers won't do anything for you but long tube headers would he beneficial. Fuel pump doesn't run. Parts overview- James L29 Vortec 454 build Ep2 - YouTube We can also adjust your speedometer to be correct. 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. youll have to stick to a torque cam because of the computor needs vacuum (speed density) headers will help greatly. 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. 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. We appreciate it but we only specialize in the big block engines. How to Make Power with a Chevy TBI V-8 - MotorTrend 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. I just ordered an ECM for my 7.4 and was curious on if you guys did this tuning on the 5.7s? Opinions On the 7.4 / 454 Suburbans and engine - Expedition Portal They said they no longer support my RV and had no parts available. Yes, you can pay the $100 up front core charge and be refunded when you send your original back to us. It is not 4x4. Is this doable? BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. I've always heard that they were a good upgrade to the TBI 454 and earlier 454 heads. I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. 7.4 Liter Vortec Info | GMC Truck Forum When you purchase, just let us know any modifications or requests and we can accomodate. The greater the power gains, the bigger the budget. Yes it would, the Banks PowerPack is helping the engine breathe better but the computer is not doing anything to take full advantage of it. After configuring a discharge tube and adding some race fuel, we slowly supplied boost to the boneyard big block. 2. To allow the motor to rev cleanly to 6,000 rpm under boost, the cam upgrade was teamed with a new set of beehive valve springs. I will be sending you my ECU. Check the make, year, and model of your car to see if the VIN number is available. Jump to Latest Follow . If you send it to us you avoid paying the core charge. Yes that would be fine, you would just need to call in to our service department and schedule a date :). I have a 2000 OBS Chevy quad cab with a 454 Vortec. I think they were made before Chevy started using real tornados. Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! Boost your horsepower, torque, throttle response and fuel economy with the advanced Innovative Performance Chip compatible with your Chevrolet Silverado 1500! vortec 454 cam? - Trucks, Trailers, RV's & Toy Haulers - ThumperTalk We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. If you had the proper tuning software, you could tune it yourself later. He could even be found working on tractors or hay bailers while on vacation at his uncles farm. The cooler charge air (plus tubing length and bends) dropped the peak boost pressure from 19.1 psi down to 17.7 psi. I have a 1999 Fleetwood Flair with a 7.4 Workhorse. The General Motors 7400 is the name given to a 7.4-liter Vortec engine produced by GM from 1996 until 2001 as a truck engine. Install an aftermarket windage tray in your engine. For a plain jane Sierra, not bad in my opinion. Vortec 454 7.4L Fuel Injector Upgrade, Replacement old injectors with Is it actually running at that RPM or just showing that? If you send us your PCM, our turn around is usually 1-2 days. 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? We have no issues with tuning a higher mileage engine as long as it is in good running condition. What sets us apart from the others? This thing is weak as water. 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. The 454 cubic-inch 7400 Vortec V-8 GM motor, which produced 290 horsepower at 4,000 rpm and had 410 pound-feet of torque at 3,200 rpm, was a smooth four cylinder without much difference between the top and bottom. Subtract the standard .050-inch clearance, this leaves only enough room for a .420-inch lift cam. 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. A cold air induction setup will feed the engine cooler and more oxygen-dense air. . Can you reprogram and net me the same HP & TQ numbers as the L29? The previous owner had the engine rebuilt in 2012 and tells me they installed an RV cam but I am not sure which one. It can be done fairly cheap , power for days and 15-20mpg, I repeat. Thanks, WILL THE 2000 1 TON DULLY I HAVE STILL PASS CAL SMOG WITH THIS TUNE UP EMC. Is the pcm that is used a 411? For this one, I would want you to send your PCM into us to be done. 454 L29 Vortec Engine Performance | Team Chevelle I'm sorry, we can't tune anything prior to 1996 model year. The Vortec 7400 as you know lays down 290 HP and 410 LbFt of Torque. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. Following up from previous question, here is the VIN 1GDG6H1BXYJ907917 and #s off the ECM, 09384681, sev. 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. We immediately checked the latest 8.1L off the list due to lack of availability and parts cross over. 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*. Check if this part fits . It specs out at 265 HP@4500 RPM and 340 ft/lbs of torque@3500 RPM. Step 2 Install a high flow air filter and cold air induction intake. 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. Maybe I need to go by the dealer and test drive a diesel or another gasser so I have a comparison. Makes NO permanent changes to your vehicle's computer! A stock 12v ain't got **** on a BBC. How to Make a Chevy 454 Vortec More Efficient | It Still Runs We are currently waiting on more ECM's to come in to be able to provide them on exchange. Body Diameter: 16 mm. Probably cause no cats. Surprisingly, the 454 laid down an impressive 330 horsepower and 475 pound-feet of torque. 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. 454 HO Crate Engine | Big Block | Chevy Performance Parts - Chevrolet The bill: $3,699.96 for all but the carb. This ignition system upgrade will allow you to set your distributor for a little more timing advance. Prices increase after 2/28. Chevy 5.7 Vortec Engine Performance Upgrades Yes, all gains listed are with 87 octane gas. 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. So if I have your tune done what is the turn around time sending my PCM to you? We can even modify these Chevy 454 rebuild kits to your specifications, giving your vehicle exactly what it needs for maximum performance. 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?? We gain on average 45-50 horsepower and 50 ft. lb. Your email address will not be published. However, this engine was intended to provide significant towing power for CAFE-exempt vehicles, so there is still room for improvement. From my experience, the HyperTech programmer for those engines is pretty generic and does not make very many changes in the programming. 7.4 Vortec Specs Chevy based the 7.4 Vortec off their 454 big block engine, hence the name 454 Vortec. 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. So, I am contemplating upgrading this thing for more power, or selling and buying a Dmax. If I send in a functional pcm for my Suburban mentioned in last question whats the average turn around for it? Thank you. Choose FORTEC 4x4 for Jeep Wrangler JL and Jeep Gladiator JT Customizing - Highly trained Specialists Since 1991 Each Jeep we touch brings you the greatest quality, functionality and performance We offer Jeep Turn Key Solutions, Jeep Parts and Jeep Accessories in Partnership with Jeep Dealerships in Atlanta and Florida Mfg Performance Parts www.straubtechnologies.com www.distributorgears.com Buy your Big Autoparts Ignition Distributor Set DR474 DR331 at Amazon! 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. The 8.1 Vortec was produced to compete with Dodge's 8.1 Magnum V10, and Ford's V10 Triton engines of the time. O-rings: Top and bottom, 14.5 mm - Viton. 454 L29 Power Upgrade | Hot Rod Forum I have the parts list and see one item called 01-412-8 hyd roller cam for $315. If you continue to use this site we will assume that you are happy with it. I do still have all the O2 sensors but would like to delete them if possible. 7.3 is 250-275/505-525 stock. Howards, Hydraulic Roller Camshaft, Chev BB Gen 6 454-502, GM, Chev BB Billet Steel Hyd. 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! Hi Warren, that is definitely something we can tune for. 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. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. K&N Performance Fuel Filters are built for high flow rates and capacity while they provide outstanding filtration. 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). Aftermarket hood are hit and miss, we did find that the integrated airbox arrangement of the Suncoast hood played havoc with clearances that were confirmed to fit within the factory underhood bracing. Here is info from COMP Cams. If they were cheap enough, sure. This 1-ton dually truck is used for hauling a large slide in camper and atv trailer. 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. Give me some idea as to what this product does exactly, and how I will benefit from spending $$ on it. I heard these trucks have a torque management system does this computer give my truck back all its power? is this unit ready for plug and play. The 4300 was GMs first Vortec-engine V6, released in 1986 and designed for trucks. Also I dont have either downstream 02 sensors. Elgin Industries set of (16) Hydraulic Roller Valve Lifters compatible replacements for Big Block Chevy GMC & Pontiac engines. Oxygen sensor modifications can be done. Apr 9, 2008 #4 7 70SSman Veteran Member Aug 11, 2005 134 Amston, CT, USA 100$ with low miles. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. Mar 20, 2011 #4 M MyBoTy Veteran Member Feb 9, 2002 1,567 Lubbock, Texas USA Even stock we see impressive gains but even more so with the Banks PowerPack installed. This modification won't be cheap or easy to install, but will eventually pay for itself if you do a lot of towing or drive a lot of miles. watch out for chips as they just bump the fuel curve. 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. BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM - ebay.com Just make sure to include that information in the order comments and we can make that happen for you :). Can I tune it myself later with my own tuner or is it still a black box like the oem? BBK 1710 80mm Throttle Body - High Flow Power Plus Series GM Vortec 305 what features will i gain with this new unit. 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. I recently ordered an ecm for a 7.4 vortec and was very impressed. 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. 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. Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. Your vehicle is not compatible. I am of the same opinion that the UltraPower programming is going to be by far your best "bang for the buck". 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. Can I reprogram on the fly as conditions change and performance needs warrant a change?? All above engines equipped wit Hydraulic Roller Lifters. We include a data recorder with the ECM for your to record engine data and send to us to verify all engine systems are running efficiently. No where near diesel power my ass. way stronger than a stock 12v, 6.5, & 7.3 powerstroke by far!!!!