Chevrolet 7.4 Vortec was a modern-day improvement of the firms most legendary big block. This is a stock style setup, featuring a 4.000" stroke and bore sizes ranging from 4.250" (standard) to 4.375". Engine Hotrodders' Lounge Body - Exterior Transmission - Rearend . Or is it what get is all you get? 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. Do you have identifying marks on the ECU? 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. I have a 2000 3500 454. We immediately checked the latest 8.1L off the list due to lack of availability and parts cross over. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidaysareprocessed on thenext business day. We will safeguard your e-mail and only send content you request. Probably cause no cats. How much will the customization cost me? I have a vortec454 in a non smog az tow vehicle. Also how much benefit do you think I would gain by going aftermarket catback exhaust. The 454 Vortec is the last in a line of one of the most successful classic engines in GM history. 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Can you guys tune that ecm? will your new part ecm work on this motorhome. For GM vehicles, the Vortec variant increased power by 60 horses. The upgraded Vortec 7400 is a 7.4L V8 OHV 16V-volt FI engine. I have the 411. I am ready to pull the trigger if I continue to run 87 octane fuel. The P12 was only available for 1 or 2 years so there wasn't enough demand to continue producing products for it. When taken together, this fairly inexpensive approach can be good for noticeable gains in fuel economy. Inexpensive and fairly easy to install, a windage tray will help to keep oil in the sump where it's supposed to be and can even help to extend bearing life by keeping the rotating assembly in balance. Yes, this would be the compatible ECM with your VIN and part #. We tune the original black box PCM but do not do the 411 swap. Purchase a Chevy 454 crate engine online from JEGS High Performance. Some parts are not legal for use in California or other . Thanks. the Vortec 7400 (454) that came in that suburban is one hell of an engine, there are also many things you can do to get more mileage and power out of it. This engine has two valves per cylinder and features multi-port fuel injection. Please see our shipping terms for more information. We are currently waiting on more ECM's to come in to be able to provide them on exchange. 2023 Power Automedia. 16238212. 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 tire are one size larger than stock to the speedometer is off a little. My question is that I have a 1998 7.4 parts truck. We set it for the best performance in all conditions, it is not user adjustable. We would reprogram yours and put it in a new case so it looks nice! I dont have the 2000 VIN only the VIN from my 1995. The great thing about using a blow-though carburetor combination is the intercooling effect you get from the introduction of fuel. Wiring is the same. 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. Do you still tune the 96 ecm? The Vortec 7400 as you know lays down 290 HP and 410 LbFt of Torque. Whats the stock numbers on a Vortec 454? 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. But like any stock engine, there was tons of power left to be squeezed out. It is $495 if your sending your core/pcm in first. It was only designed for Chevrolets high-performance vehicles, such as the Chevelle and Corvette, and there were claims that engine horsepower output was actually underreported by Chevrolet during the muscle car wars. You would see a nice gain in power, on your 1997 we generally pick up about 30 horsepower and 35 lb-ft torque. This is only 1 of the many changes that we make with our programming to achieve great power gains. 12568774 438 HP @5300 RPM 500 LB/FT @3500 RPM 1 2 Updated Design The 454 HO features an all-forged rotating assembly for great strength and durability. Or if I pay to send in, is the return shipping included in the $495? 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. 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. 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 the parts list and see one item called 01-412-8 hyd roller cam for $315. The LS6 was discontinued after 1971 because of tighter emissions controls, and the LS5s power had dropped to about 245 horsepower by 1973 as a result of more stringent emission standards. What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? A cold air induction setup will feed the engine cooler and more oxygen-dense air. If you continue to use this site we will assume that you are happy with it. 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. Can I tune it myself later with my own tuner or is it still a black box like the oem? 1997 gmc 3500 cc dually. Thanks. We appreciate it but we only specialize in the big block engines. 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. They also installed roller lifters, heavy springs and chain/gears. The UltraPower ECM performs very well on both stock engines and ones that have been upgraded with other modifications. Yes, as long as it is a "J" (8th digit of the VIN) Vortec 7.4L, we can tune it. We do not, however, have core PCM's for this engine so you would have to send your PCM in for the flash. If powertrain performance projects and hardcore technical content are your interest, Power & Performance News is the publication designed for you. Just need a working substitute, no enhancements really needed. my ecm has to be replaced. merci. Performance Street, great low to mid-range. See listing details. what features will i gain with this new unit. We've had a lot of issues with 1996 & 1997 PCM's so for the moment we are not tuning those. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. I want to install a cam while you have the ECU. 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 . 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. Yes, we could accept the PCM from your '98 as the core. 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, all gains listed are with 87 octane gas. 4.56 might be abit tall. Do you offer anything for the 5.3? Find many great new & used options and get the best deals for BBK Performance Parts 1710-XD GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD at the best online prices at eBay! And i was wondering what benefits will i see with my 454 i have a new jasper motor with upgraded injectors and full exhaust. 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. Chevrolet Performance's 454 HO crate engine is a Big-Block bargain - an affordable engine with performance specs that will make you think it's 1970 all over again. 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 exhaust does not have CATS with dual to the muffler and single exit tailpipe. Explore Our Forums. Raylar performance packages allow your 496 to produce massive amounts of power without sacrificing reliability. Buy in monthly . Would the retuned ECM provide any performance gains above what are present now? Body Diameter: 16 mm. You may also like. Thanks, WILL THE 2000 1 TON DULLY I HAVE STILL PASS CAL SMOG WITH THIS TUNE UP EMC. Weve seen a few 1996-1997 PCMs with this issue. With the baby stock cam they made 290hp and 415 ft lbs of torque. Stage 1 Upgrade for Mercury 525 EFI. This left us with Mark 4, Gen V and Gen VI big blocks to choose from, any of which would work for this project. 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. 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". Great motor and runs strong with gobs of TQ. Overall Length: 3 inches, 74 mm. Step 2 Install a high flow air filter and cold air induction intake. Use a set of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. We are currently out of clean/painted cases for the PCM's. Also I dont have either downstream 02 sensors. Of course, the guys wanted to see what the old iron block had in her, so they ran a baseline test. It is unlikely that the Vortec 454 accessories will clear the hood. Engine is in stock configuration with no upgrades. We set all the parameters in the PCM, so you will not have a way to make adjustments on your end. 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. Is the Vehicle Control Module an ECM by another name? Does this upgrade have a negative or positive impact on engine life? $399.99. Your vehicle is not compatible. At the relay the Orange wire is hot with 12 volts continually. 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. 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. Use for stock replacement OEM original equipment. I would think that u-haul did not use their own ECM. . You can definitely hold on to your PCM, that is not an issue. We can adjust for speedometer error. Is there any way I could send you that one as a core in return for one to work in my 2000? I replaced the relay to no avail. 5. It is not 4x4. I recently ordered an ecm for a 7.4 vortec and was very impressed. No where near diesel power my ass. way stronger than a stock 12v, 6.5, & 7.3 powerstroke by far!!!! 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. Other #s not sure what they are if theyre useful, 86DAFMM0017433PS, HDW # 16239740. Will the UltraPower tune, give me the "best bang for my buck" performance increase? 7.3 is 250-275/505-525 stock. Cost is $395 plus a $175 core charge which is refundable. We have been doing them on a limited basis, it has been very challenging to find good cores to use. I have a 2000 C3500 with the 454/L29 and auto trans. I have a 1999 Fleetwood Flair with a 7.4 Workhorse. Hot Rod And remember, thats all without touching the bottom end. If I send yall Parts list of what kind of cam, injectors, pistons, etc. That said, the main internal differences between the L29 and L21 is that the L21 has forged pistons and crankshaft. We are unaware of any cam upgrades specifically for the L21. im wanting /needing power and torque. I will be sending you my ECU. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. I just ordered an ECM for my 7.4 and was curious on if you guys did this tuning on the 5.7s? Your email address will not be published. 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). So if I have your tune done what is the turn around time sending my PCM to you? Really? 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. 98 Single Rear Wheel 3500 7.4 Vortec. I tow a large fifth wheel trailer with RPMs between 1800 to 2500 typically. 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. Do a 12 swap and be done. $399.99. When you purchase, just let us know any modifications or requests and we can accomodate. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. Yes that would be fine, you would just need to call in to our service department and schedule a date :). The Muscle Automobile Period had come and gone before the 7400 series debuted. It is located on top of the radiator support and has 4 connectors going into the back of it. watch out for chips as they just bump the fuel curve. Fuel pump doesn't run. 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. We wanted to make sure the air/fuel and timing curves were spot on before running the supercharged monstrosity in anger. from your CUSTOM TUNING,ECM, J'ai l'intention d'amliorer l'ordinateur de mon VR, par un model ULTRAPOWER mais avant d'acheter, j'ai besoin de savoir quels fuel injecteurs seront le mieux adapts ( conomie et rendement ) avec le nouveau module? Yes, we can tune your L21 for similar gains as with the L29. After selecting a motor, we set about making the necessary changes for our test. It is bone stock except for tow mirrors and Kodiak door handles on all 4. 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. If you choose the core option we will program an ECM here and ship to you. The Vortec 454 was touted as having substantially more power. 1 cat is gone already and the other is gutted i am taking it off next week when i get a chance. Would you be able to tune this on a new computer so I can keep the original? This is a lie. It was utilized in the Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, and Chevrolet Express. Will this correct my RPM gauge issue? They have a high strength carbon steel housing and a high performance rolled seam that exceeds OEM pressure requirements. Don't worry about what a camshaft may produce at 4000-5000 rpms in truck engines like this - YOU DON"T DRIVE THERE! 4 Bolt Main GM Factory Vortec, Edelbrock's Performer Multi-Point EFI. Heads, intake and headers would definitely wake it up. I have a 98 C-3500 dually with a Vortec 454. Sequential-Port Fuel Injection (454 only had 2 Throttle Body Injectors) 3. Also the torque management. 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. Buy your Big Autoparts Ignition Distributor Set DR474 DR331 at Amazon! The vin is for a 2004 gmc 1500 with a 5.3 vortec. 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 4300 was GMs first Vortec-engine V6, released in 1986 and designed for trucks. I am doing a full engine swap from a damaged motorhome to my older motorhome. This 1-ton dually truck is used for hauling a large slide in camper and atv trailer. We can tune it if you can build it :). 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. 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. Edelbrock 7162 Performer 454 Cam kit can produce 540 horsepower and 530 ft-lbs torque power on a 454 engine. However, this engine was developed mostly for large towing ability for CAFE-exempt passenger cars, so there is still room for improvement. It specs out at 265 HP@4500 RPM and 340 ft/lbs of torque@3500 RPM. Just make sure to include that information in the order comments and we can make that happen for you :). 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 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: 7.4 chevy engine in georgia boy pursuit motorhome. I am upgrading the fuel injectors with the new Bosch III's and the plugs and wires. Is it actually running at that RPM or just showing that? I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. I would like the biggest bang for the $. I'm interested in the available upgrades for the vortec 454. The greater the power gains, the bigger the budget. $360.56. The state of California requires that this warning be posted for people purchasing products that reside in California. Yes, you can pay the $100 up front core charge and be refunded when you send your original back to us. Don't know how tuning would work. Precision Auto Injectors Genuine Delphi 12568155 12586557 GM Fuel Injectors Set of 6 2004-2007 GM 3.5L OHV. The Chevrolet 454s of the 1970s were the most powerful, with the LS5 producing approximately 360 horsepower and the LS6 generating around 450 horsepower. Typical turn around is 3-4 days, sometimes quicker. You will gain approximately 35-40 horsepower and 45 lb-ft torque. It's a nice cam for a 454 big block chevy engine that runs with 1500-6500 RPM Range. I'm saving up for the banks power pack system. 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 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. Oct 25, 2004 Do you guys know anything about the L29 Vortec motor. To others, the 7.4 Vortec 454 big-block was the perfect engine at the wrong time. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Naturally, the truck-based 454s. Mark McNabb was a contributor at TopSpeed from 2013 to 2018. We removed the factory EFI injection, and replaced it with simple carburetion. Most generic tuners only change very basic parameters within the computer, whereas UltraPower Tuning changes approximately 400 parameters including both engine AND transmission settings. 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. 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). 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. Elgin Industries set of (16) Hydraulic Roller Valve Lifters compatible replacements for Big Block Chevy GMC & Pontiac engines. Without going into the engine, they make a supercharger kit for it, I know whipple use to. Originally Posted by PonyKiller87 Ok, sounds just like swapping over the 96-00 vortec 350 to the 0411 as far as the wiring goes. Stronger shift points for towing and power. m) at 3200 rpm. It gets you an EGR blockoff plate for the Vortec 4.3/305/350 engines. Been reading the net the last few days on power upgrades for my truck after reading the "best year diesel" thread on here. I have Bosch Gen III injectors; Volant Air intake; and 3 exhaust. Also I have Thorley tri Y hearers on mine will that effect the tune? We only specialize in the big block engines. 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. Naturally, the truck-based 454s were tuned for torque, so having nearly 500 pound-feet wasnt a big surprise. what does this do at emission inspections?? 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. Always a big complaint with 454 TBI trucks. Seems like it's lacking power towing my boat. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. We will set the tune up based on your modifications and requests. The heads, pistons, and intake are stock. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets. Pindar I am certain we can get more power and overall better drivability with our tuning versus your current setup. After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. The stock Vortec iron head will not tolerate more than .440-inch lift. I have had a hard time finding much of anything for these engines. Our typical turn around time is 2-3 business days. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. If you can supply me with your VIN and any part #'s that are on the ECM I can do some research. Feb 1, 2016 #2 Jorge6.5 I'm Awesome Joined May 17, 2013 Messages 1,015 Reaction score This upgrade will not only improve overall top end power but it also . Is there anything to be gained within my parameters? All rights reserved. Gains with the modifications you have done would be around 45 HP/ 45 TQ. In 2001, production of the 7400 line was discontinued. Yes, it definitely will. 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. Check the make, year, and model of your car to see if the VIN number is available. The Vortec enhancements simply allowed GM to pass smog at a higher RPM. Is it not the same motor from 96 to 2001. This camshaft provides more lift and longer duration using the 10-12 Manifold vacuum. 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. 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. If you send your ECM in, we can make the necessary adjustments you are requesting. Bosch p/n: 0280155884. Apr 14, 2016. Steel Camshaft 4. You might be able to run an L29 cam, but you will need to consult an engine builder. My goal is to improve torque and trans efficiency then MPG. After installed Ultrapower GM/ Workhorse 1998 7.4l Vortec 454c. Although Chevrolet does not explicitly recommend it, because a full synthetic is so slippery, you can use a lighter weight oil without risk of excessive engine wear. I am considering your tune for my motorhome. If you had the proper tuning software, you could tune it yourself later. The issue with your tachometer would only be fixed if there is an actual issue with your PCM. The only weak link is the peanut port factory heads and the sprinkler style fuel injection. The Vortec 8100 (RPO L18) is a V8 truck engine. We have no issues with tuning a higher mileage engine as long as it is in good running condition. So I have a 98 K3500 with the 7.4L and I use it mainly for hauling, but I have began to daily it. 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). 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. 454 Vortec Reliability and Ownership Guide, Pre-Purchase Inspection: What to look out for, crate version of the 454 big block from Chevy, 1996-2000 Chevrolet/GMC C/K GMT-400 platform trucks 2500/3500, 1996-1999 Chevrolet Suburban 2500/GMC Suburban 2500, 1996-2000 Chevrolet Express ( & 1 ton versions), 19982001 Chevrolet Kodiak/GMC TopKick/Isuzu H-Series 4500 5500, Larger Fuel Injectors and Fuel Pump Regulator. After configuring a discharge tube and adding some race fuel, we slowly supplied boost to the boneyard big block.
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