The most important changes that are made have to do with spark advance, fueling, transmission shifting and torque management settings. Thinner oils allow the internal engine components to spin more freely and effectively, which improves their function. The ignition timing was dropped to 21 degrees and after adding a few jets to the carburetor, we were rewarded with some serious power. Jump to Latest Follow . Any thoughts from you technical guys? I'm saving up for the banks power pack system. Use for stock replacement OEM original equipment. We are currently waiting on more ECM's to come in to be able to provide them on exchange. Install a high-flow air filter and a cold air intake. Another popular upgrade is changing to Bosch 4 hole injectors. 90 and older is particularly bad and that is largely due to NO OVERDRIVE. Thanks. I THINK I want a diesel until I look at the prices. Truth be told, Vortech offered a number of Maxflow Aftercooler systems but we selected an intercooler core we had on hand for testing. 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. There is a small red wire that has never been connected to anything. Apr 9, 2008 #4 7 70SSman Veteran Member Aug 11, 2005 134 Amston, CT, USA 100$ with low miles. 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. Reasons to buy: The batteries are fully charged and there is 12 volts to the distributor. PART NO. This is a lie. It is unlikely that the Vortec 454 accessories will clear the hood. We can send a pre-programmed ECU on core exchange. Thanks for any help. This upgrade will not only improve overall top end power but it also . Only a set of dyno headers and an electric water pump were different. I have been watching lots of posts and things get carried away very quickly about getting big big hp. It was the same size as the outgoing 7.4 L V8, but got a boost in power and more towing capacity. At the relay the Orange wire is hot with 12 volts continually. You can source the 454 HO directly from Chevrolet. We appreciate it but we only specialize in the big block engines. I have Bosch Gen III injectors; Volant Air intake; and 3 exhaust. Stage 1 Upgrade for Mercury 525 EFI. Is it not the same motor from 96 to 2001. I would like the biggest bang for the $. Do you folks know of cam upgrades along with tuning that would give power upgrades on a l21 with a manual transmission ? Oxygen sensor modifications can be done. 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. O-rings: Top and bottom, 14.5 mm - Viton. Is there a way you could tune that out completely or as much out as you possibly can? The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. Howards, Hydraulic Roller Camshaft, Chev BB Gen 6 454-502, GM, Chev BB Billet Steel Hyd. We modify this so that it is still "safe" but definitely wakes the truck up. You can pretty easily get 400+ horses out of that thing and it be streetable. Would the retuned ECM provide any performance gains above what are present now? For this test, the motor was configured with an Edelbrock RPM Air Gap intake and Holley 750 carburetor. The stock injectors are fine for our performance tuning. It was produced as a gas alternative to the new Duramax LB7 diesel, offering a high-torque gas engine capable of towing just about anything. 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! Reading some of your responses I came across one with regards to a 1996. It's a nice cam for a 454 big block chevy engine that runs with 1500-6500 RPM Range. I have a 2000 7.4 with a bigger cam cold air kit dual exhaust better mass air flow senser and roller tip rockers can u tune that as well or do you just do stock stuff, I have a 99 k 3500 Chevy 1 ton with 454 5 speed.will your computer tune work in my truck and can I expect 40+hp gain? The Gray, the green with white strip and the black test grounded. 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. $360.56. Please contact us directly to set that up at 800-417-4559. (454 used only MAP) 2. The 7.4 Vortec was essentially the same big block 454 that Chevrolet used to power its muscle cars, but it gained a hydraulic roller camshaft and improved cylinder heads to make it considerably more efficient than the old LS6 could ever hope for. I have a 1998 Winnebago Brave on a p30 chassis with the 7.4 with a Banks Power Pack. At this point the engine run well, with no code problems. 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 $. With the baby stock cam they made 290hp and 415 ft lbs of torque. Buy in monthly payments with Affirm on orders over $50. 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*. If you choose the core option we will program an ECM here and ship 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. We are unaware of any cam upgrades specifically for the L21. Installed E3 spark plugs which seemed to help. All fuel injector specifications meet or exceed the manufacturer's specification standard. Thanks. Check for Availability: $349.95. Do you have any videos of how to locate and remove my ECM? The tuning is custom to each vehicle depending on calibrations, modifications and any special requests. We can tune the 2000 ECM for that engine and I'm pretty sure the ignition harness on that vehicle has no tie in with the ECM. Yes, we can do that. We can accommodate your requests for the oxygen sensors, speedometer adjustment and increased HP/TQ. I heard these trucks have a torque management system does this computer give my truck back all its power? Can you guys tune that ecm? Check out their web sight Bankspower.com watch out for chips as they just bump the fuel curve. However, Chevy still offers the 454 big block V8 as a crate engine. The Vortec 8100 (RPO L18) is a V8 truck engine. Step 2 Install a high flow air filter and cold air induction intake. 496 cubic inches. Not only did the cam swap net an additional 52 horsepower (peak-to-peak), but the gains exceeded 80 hp higher in the rev range. BBK Performance Parts 1710-XC GM VORTEC 305/350/454 80MM POWER PLUS THROTTLE BOD. As I understand it I do not have the newer 0411 ECM and these have better processing power but need to be repinned. and will it improve my over all power? It is quite a noticeable difference! I've made several performance upgrades myself, but are always looking for something better. Nothing I was finding really listed ACTUAL upgrades. Would you be able to tune this on a new computer so I can keep the original? Will the UltraPower tune, give me the "best bang for my buck" performance increase? How much will the customization cost me? Can you tune my new 2000 ECM and will it work without the original key and ignition harness. 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. It will not void your factory warranty, and does not modify any emissions systems. This camshaft provides more lift and longer duration using the 10-12 Manifold vacuum. youll have to stick to a torque cam because of the computor needs vacuum (speed density) headers will help greatly. It was known as the Vortec 7.4 (7400, Regular Production Option designation L29) in North America and across other markets. 16238212. However, this engine was intended to provide significant towing power for CAFE-exempt vehicles, so there is still room for improvement. Solenoid resistance: 12.5 Ohms. 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. 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. After selecting a motor, we set about making the necessary changes for our test. 2019 Rodney W. Brazel Inc. - Ultra RV Products is a Division of Brazel's RV Performance, UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning, within 24 hours from the order date. My question is what cam you would recommend for towing? Not sure if you have any other issues causing low power though because it should outperform the 5.7L, especially towing. Wiring is the same. If product is incorrect for the provided VIN we will contact you to revise order. I am of the same opinion that the UltraPower programming is going to be by far your best "bang for the buck". Body Diameter: 16 mm. Cats have been removed as well as smog pump. Do you still tune the 96 ecm? Only tow rigs I have used to pull my Jeep with was this truck and my DD Driver 5.3 Tahoe. The 1970 Chevrolet 454 was the most powerful with outputs of 360 and 450 horsepower from the LS5 and LS6, respectively. Do you have identifying marks on the ECU? The banks system will give you 70hp and 85lb-ft. The state of California requires that this warning be posted for people purchasing products that reside in California. Please just leave in the order comments your requests to be done. Boost your horsepower, torque, throttle response and fuel economy with the advanced Innovative Performance Chip compatible with your Chevrolet Silverado 1500! Install an aftermarket windage tray in your engine. no. The main improvements will be improved shifting and overall more torque to pull hills. Yes you are correct that there is torque management which "pulls" back power when taking off from a stop. How To Add 70 Percent More Power to A Chevy 454 V-8. For more information, visit www.P65Warnings.ca.gov, NOTICE: Fororders outside of United States. I would think that u-haul did not use their own ECM. It may not display this or other websites correctly. Unfortunately this is not something that we offer. 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. The Vortec 7400 was based on Chevrolets 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. Buy your Chevrolet Performance 454 crate engine from JEGS High Performance today! 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. Headers suggested. 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. He eventually figured it out. When you purchase, just let us know any modifications or requests and we can accomodate. I have a 2000 gmc k2500 with the l29 454. . We set it for the best performance in all conditions, it is not user adjustable. 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. 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. After all, every horsepower lost to such "parasitic drag" is one less that won't be helping your truck move down the road. Roller Cam, .483 Lift . 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! Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. 7.4 chevy engine in georgia boy pursuit motorhome. This engine has two valves per cylinder and features multi-port fuel injection. Without going into the engine, they make a supercharger kit for it, I know whipple use to. The 454 HO crate engine boasts 438 HP and 500 lb-ft of torque. The tuning alone will be the single biggest change you can make to improve power and throttle response. Headers exhaust. For this one, I would want you to send your PCM into us to be done. It gets you an EGR blockoff plate for the Vortec 4.3/305/350 engines. Free shipping for many products! Makes NO permanent changes to your vehicle's computer! We tune the original black box PCM but do not do the 411 swap. This is not an automatic check, it is performed manually by a parts specialist once the order is placed. $199.95. Yessir! Reference core exchange, what is the time limit for you to receive the exchange? I dont have the 2000 VIN only the VIN from my 1995. Originally Posted by PonyKiller87 Ok, sounds just like swapping over the 96-00 vortec 350 to the 0411 as far as the wiring goes. 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. Gasoline engines do not require different settings for different conditions like a diesel engine does. If you had the proper tuning software, you could tune it yourself later. If you send us your PCM, our turn around is usually 1-2 days. Et si je devrai faire recalibrer mon ecm? Turn around time is 1-2 business days. A cold air induction setup will feed the engine cooler and more oxygen-dense air. Cost would be $495. Dec 18, 2007 . All other modifications are going to be expensive, labor intensive and still not necessarily yield the same results. It debuted in 1970 as an upgrade of the 427 big-block V8 engine. Learn more. Straight Port Cylinder Heads 6. Yes, we can resolve your issues. But like any stock engine, there was tons of power left to be squeezed out. We have a complete Banks Power System and Banks Air Flow. A/T Flywheel, Hedman TEMS headers, and all the other good stuff that goes with a long block. 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. Don't worry about what a camshaft may produce at 4000-5000 rpms in truck engines like this - YOU DON"T DRIVE THERE! You are using an out of date browser. Could you do a downstream 02 sensor delete? In search of power, GM reverted to the big-block engine design, with a 454-cubic inch displacement. 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. Cost is $395 plus a $175 core charge which is refundable. If i buy a tune do i need to send my ECU 1st or can you send me one then when i get the ECU from you send mine back to get my 100 back? 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. Thanks. If you want to send your PCM in that you know is functional, that is the best way to do it. And what is the final cost of your ECM. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. It is an all-iron engine (block and heads . 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 The compression was plenty low for use with the blower, but the extra power it provided would eventually be multiplied by the boost. They also installed roller lifters, heavy springs and chain/gears. Their high performance cellulose glass media traps contaminants such as rust, dirt, scale and other foreign materials. You might be able to run an L29 cam, but you will need to consult an engine builder. Chevrolets Vortec 454 was a modern-day evolution of the firms most famous big block. performance, modifications, classifieds, troubleshooting, maintenance, and more! Is there any way I could send you that one as a core in return for one to work in my 2000? We don't however specialize in forced induction applications so we would not be able to help you with that. Oct 25, 2004 Do you guys know anything about the L29 Vortec motor. 98 Single Rear Wheel 3500 7.4 Vortec. They have a high strength carbon steel housing and a high performance rolled seam that exceeds OEM pressure requirements. He could even be found working on tractors or hay bailers while on vacation at his uncles farm. Free Shipping over $199* Same Day Shipping before 7pm* Price Match Guarantee Free Shipping over $199* Same Day Shipping before 7pm* I have a 2000 3500 454. Whats left, though, is a 454 cubic-inch big-block Chevy with huge potential. We have no issues with tuning a higher mileage engine as long as it is in good running condition. I am in a non emissions state My 98 GMC K2500 L29 7.4 litre has 2.5" true dual exhaust with pro Flowmax mufflers an X-Pipe, cat delete but still has both upstream and both downstream o2 sensors. Maybe I need to go by the dealer and test drive a diesel or another gasser so I have a comparison. If I order a ecm reprogram will this fix my speedometer error too?? It was utilized in the Chevrolet Silverado, GMC Sierra, Chevrolet Suburban, and Chevrolet Express. Thank you. And a k and n filter. Mostly people saying to try this and try that. I want to install a cam while you have the ECU. You will gain approximately 35-40 horsepower and 45 lb-ft torque. Yes that would be fine, you would just need to call in to our service department and schedule a date :). my old part number on ecm is 16263494 on 1999 454. Sequential-Port Fuel Injection (454 only had 2 Throttle Body Injectors) 3. Precision Auto Injectors Genuine Delphi 12568155 12586557 GM Fuel Injectors Set of 6 2004-2007 GM 3.5L OHV. If they were cheap enough, sure. 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). If you can supply me with your VIN and any part #'s that are on the ECM I can do some research. This left us with Mark 4, Gen V and Gen VI big blocks to choose from, any of which would work for this project. 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. The terms ECM, PCM, and VCM are all used to describe the engine computer by various manufacturers, yours is located above the radiator . 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. Vehicle Monitoring and data-logging like no other! Can I reprogram on the fly as conditions change and performance needs warrant a change?? The greater the power gains, the bigger the budget. 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. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. How to Get More Horsepower From a 360 dragster engine image by Robert Young from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. 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. do you think I could get more power with your ecm re-program? Heads, intake and headers would definitely wake it up. 5. 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. The UltraPower ECM performs very well on both stock engines and ones that have been upgraded with other modifications. Our kits include camshaft, lifters, piston rings, pistons, both rod and main bearings, cam bearings, timing components, oil pump, frost plugs and gasket set, with an option to purchase a crankshaft as well. Your vehicle is not compatible. Purchase a Chevy 454 crate engine online from JEGS High Performance. I just bought this 97 suburban 4wd with the bbc. If I send in a functional pcm for my Suburban mentioned in last question whats the average turn around for it? We are not able to assist in providing this PCM. Thinner oil drags less on internal engine parts, helping the engine to spin more freely and run more efficiently. 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. Oil tends to collect on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons) and reducing horsepower through parasitic drag. Make use of long-tube headers (exhaust manifolds) and an aftermarket exhaust system. 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?? Yes, all gains listed are with 87 octane gas. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. Banks iDash: SuperGauge & DataMonster. 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. 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. cam with matching torque converter and headers would be easy. Alright Jay! We immediately checked the latest 8.1L off the list due to lack of availability and parts cross over. 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 It is a re-programmed ECM, either you send yours in or we send you one on a core exchange. Would we still get the good price when you get more control modules in stock? I have the parts list and see one item called 01-412-8 hyd roller cam for $315. Is it possible to upgrade the ECM on my 1994 Fleetwood Southwind Storm 454 TBI w/4L80E trans? The peak numbers jumped from 791 hp and 713 lb-ft with no intercooler to 847 hp and 761 lb-ft with the intercooler. Don't know how tuning would work. 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. With our tuning, peak horsepower is at about 3500 RPM and peak torque is about 2500 RPM. Is this enough information to create a tune or will you need more information? 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. We use the original black box PCM's. Some parts are not legal for use in California or other . As you can tell, it doesn't deliver much. We would just need to know the tire size you are running and if the rear gear ratio was ever changed from factory. Why a motorhome? The bill: $3,699.96 for all but the carb. In the end, we selected a 1999 Gen VI 454 and pulled it from its home in the engine bay of a 1-ton work truck. Apr 10, 2008 #5 M MyBoTy Veteran Member My question is that I have a 1998 7.4 parts truck. 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. Thanks. Every horsepower subtracted as a result of parasitic drag is one less horsepower that wont help your truck travel down the road.
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