no. Thousands of satisfied customers have reported fuel economy increases as well as less transmission downshifting because of the increased horsepower and torque. I am ready to pull the trigger if I continue to run 87 octane fuel. I called Banks Power last week to try and find out what they recommend. Any "recalibration" would require sending your ECM to us for programming changes. Thank you for any information you could give me. 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? I have 2000 Itasca, 30 foot Class A motor home with a high mileage engine, will the ECM performance reprogramming, short the life of my engine? If it is a 1998 then yes you can. I have a 1998 Winnebago Brave on a p30 chassis with the 7.4 with a Banks Power Pack. 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've always heard that they were a good upgrade to the TBI 454 and earlier 454 heads. How much can you get them for? and will it improve my over all power? Primary or Expansion Gauges And Upgrade Kits (52mm) For 2008+ OBDII CAN bus vehicles, Upgrading SIx-Gun, Economind, and SpeedBrake, or use with BBus Sensor Modules. Et si je devrai faire recalibrer mon ecm? HotCars covers all things automotive: the latest auto news and informative reviews on the car, pickup truck and motorcycle industries. I bought this truck brand new. 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. I am certain we can get more power and overall better drivability with our tuning versus your current setup. The state of California requires that this warning be posted for people purchasing products that reside in California. Whats the stock numbers on a Vortec 454? my old part number on ecm is 16263494 on 1999 454. 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. They left all the original parts in place like the two-barrel carburetor and dilapidated ignition system. Gains with the modifications you have done would be around 45 HP/ 45 TQ. After selecting a motor, we set about making the necessary changes for our test. If you don't mind a "dirty" PCM case then we can take care of an order for you. I recently ordered an ecm for a 7.4 vortec and was very impressed. Just wondering because Id buy one of those as well. Precision Auto Injectors Set of 8 Genuine OEM 1996-2000 GMC Chevy 7.4L 454CID Vortec Rochester Fuel Injectors. Yes, you will still pass emissions as long as you don't tamper with the existing emissions systems. We can also adjust your speedometer to be correct. I have a 2000 3500 454. 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. If you want to take full advantage of the cam swap then a custom tune will be needed to address that. 496 cubic inches. Or is it what get is all you get? Chevrolet 7.4 Vortec was a modern-day improvement of the firms most legendary big block. In an effort to further drop the inlet air temps, we installed a makeshift air-to-water intercooler. 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 Thinner oils allow the internal engine components to spin more freely and effectively, which improves their function. Very interested in this. JavaScript is disabled. torque so it will definitely be able to hold the upper gears better when hill climbing and have improved acceleration. Overall Length: 3 inches, 74 mm. 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. What sets us apart from the others? 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! Is this enough information to create a tune or will you need more information? Headers exhaust. 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 2000 gmc k2500 with the l29 454. 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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. The tire are one size larger than stock to the speedometer is off a little. We will set the tune up based on your modifications and requests. 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. $199.95. Chevrolet BB Gen 6 454-502, '96-'00 Camshafts at Competition Products! If you send your ECM in, we can make the necessary adjustments you are requesting. We've had a lot of issues with 1996 & 1997 PCM's so for the moment we are not tuning those. Cost would be $495. Eric, we can program for EGR delete, cost would be $ 495.00 and would also include the performance tune . You can definitely hold on to your PCM, that is not an issue. 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. 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. I just ordered an ECM for my 7.4 and was curious on if you guys did this tuning on the 5.7s? That represents a 70-percent increase in horsepower. You are using an out of date browser. I like my shift points where they are. Are there any gains to be had by programing and adding headers to my truck? We also took the liberty of installing a Race-Port blow-off valve from Turbo Smart. Originally Posted by PonyKiller87 Ok, sounds just like swapping over the 96-00 vortec 350 to the 0411 as far as the wiring goes. 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. Dec 18, 2007 . 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). The batteries are fully charged and there is 12 volts to the distributor. BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built . If you want to send your PCM in that you know is functional, that is the best way to do it. It can be done fairly cheap , power for days and 15-20mpg, I repeat. I have a 2000 OBS Chevy quad cab with a 454 Vortec. I fought this truck with the cats deleted and air pump disabled. That said, the main internal differences between the L29 and L21 is that the L21 has forged pistons and crankshaft. 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 So I have a 98 K3500 with the 7.4L and I use it mainly for hauling, but I have began to daily it. It is quite a noticeable difference! Would this work on 1996 7.4L L29? I am considering some performance upgrades to my 2000 Winnebago Brave with the 7.4 liter engine. Right now I have a CAI, 2" full length headers, 3" dual exhaust and EGR delete. 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. I have a 2000 OBS Chevy quad cab with a 454 Vortec. The tune will definitely wake the truck up. This is a stock style setup, featuring a 4.000" stroke and bore sizes ranging from 4.250" (standard) to 4.375". 454 L29 Power Upgrade. We measured our stock iron heads right out of the box and the retainer-to-seal clearance was only .470-inch. You claim 40-55hp gains is that something that I will notice drastically or is it more of a subtle power increase? Technical Specifications: No filter cleaning required for up to 100,000 miles. 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 vin is for a 2004 gmc 1500 with a 5.3 vortec. 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. 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. my ecm has to be replaced. Despite the impressive cooling powers of the carburetor, we were still concerned about the elevated charge temps going into the carburetor. Why a motorhome? At the relay the Orange wire is hot with 12 volts continually. The terms ECM, PCM, and VCM are all used to describe the engine computer by various manufacturers, yours is located above the radiator . We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Yessir! You might be able to run an L29 cam, but you will need to consult an engine builder. You may also like. 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. 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. It may not display this or other websites correctly. . We use the original black box PCM's. The Muscle Automobile Period had come and gone before the 7400 series debuted. I'm saving up for the banks power pack system. Yes, all gains listed are with 87 octane gas. 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. Switch to a lightweight synthetic oil. Turn around time is 1-2 business days. 7.3 is 250-275/505-525 stock. Does this computer hav egr delete programmed into it. 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. I didnt see anything on the site but that doesnt mean I saw everything. Its 567 horsepower of usable, reliable, fun power that anybody on a budget can build. Hello! Oil collects on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons), reducing horsepower through parasitic drag. This thing is weak as water. I'm interested in the available upgrades for the vortec 454. 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. 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. I plan on the injector and ignition work done in march. Reasons to buy: Yes, we tune for 87 octane unless a higher octane is requested. 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. Also, is shipping included both ways? 7.4 chevy engine in georgia boy pursuit motorhome. 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? We set it for the best performance in all conditions, it is not user adjustable. 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. Even stock we see impressive gains but even more so with the Banks PowerPack installed. Buy your Innovative Performance Chip/Power Programmer at Amazon! We can easily do this with the specs you provide. 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. Gains will be on par with what we achieve with the RV's so it will very well suited for towing. The tuning alone will be the single biggest change you can make to improve power and throttle response. cam with matching torque converter and headers would be easy. It's a nice cam for a 454 big block chevy engine that runs with 1500-6500 RPM Range. Have you plugged an OBD2 reader into the truck to see what it is displaying for RPM? Thank you. Our typical turn around time is 2-3 business days. So, I am contemplating upgrading this thing for more power, or selling and buying a Dmax. Another popular upgrade is changing to Bosch 4 hole injectors. Is the Vehicle Control Module an ECM by another name? Power & Performance News is the source for news, tech and products that help you get more performance from your vehicle. Use for stock replacement OEM original equipment. Their high performance cellulose glass media traps contaminants such as rust, dirt, scale and other foreign materials. I would like the biggest bang for the $. My question is what cam you would recommend for towing? I would think that u-haul did not use their own ECM. The stock injectors are fine for our performance tuning. I tow a large fifth wheel trailer with RPMs between 1800 to 2500 typically. Stronger shift points for towing and power. The old camshaft came out, too, with a meatier hydraulic bump stick with 0.600 inches of lift taking its place. It is a re-programmed ECM, either you send yours in or we send you one on a core exchange. I have a 2000 7.4 engine transmission and full wire harness and ECM from one motorhome and want to put it in my 1995 motorhome. I would like to get the o2 delete. Do a 12 swap and be done. If so, is that the unit that sits above the radiator of a 2000 Itasca Suncruiser V32 w/ L29 7.4l (454ci) Vortec? 7.4 Vortec Vehicles Applications The Vortec 7400 had two variants, the L29 and L21, and they appeared in the following vehicles: We have been doing them on a limited basis, it has been very challenging to find good cores to use. And what is the final cost of your ECM. Steel Camshaft 4. I am doing a cam swap on a 98 GMC K3500 7.4 comp cams telks me i will need a custom tune according to cam specs this truck is primarily used for towing plan to use stock fuel injection if posdible any info would be greatly appreciated, I have a 1996 Chevrolet K3500 what is 7.4 454. It was also noted to have more power for gasoline engines. I list that this RV was originally equipped with a 4.63 rear gear ratio and a tire size of 225/70R19.5. Do you offer anything for the 5.3? Yes, we can do that. The same 290 horsepower that was standard for all GM cars in 1980 was maintained throughout the decade. You can source the 454 HO directly from Chevrolet. Even so, this engine was built primarily to provide huge towing power for CAFE-standard exempt vehicles, so there remains some room for improvement. I have a 1996 C3500 crew cab dually with a 7.4. Yes, we can tune your engine for more power, doesn't matter what type of transmission. . Learn more. Oil tends to collect on the crankshaft counterweights, adding weight to the rotating assembly (crankshaft, rods and pistons) and reducing horsepower through parasitic drag. I think I am going to swap on a good set of aftermarket heads and change out to an Edelbrock Pro Flo EFI. Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube. It won't hurt anything to run like that. Installed E3 spark plugs which seemed to help. 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. im wanting /needing power and torque. 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. better yet have it tuned (Brian Bosch I believe is the man to talk to about . CAN YOU REALLY MAKE DECENT POWER WITH A SET OF PEANUT PORT BBC HEADS?. Roller Lifters 5. 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. Sequential-Port Fuel Injection (454 only had 2 Throttle Body Injectors) 3. This engine series was utilized on Chevrolet and GMC large truck models such as the Suburban from 1996 through 2001. Buy your ELGIN Industries HL-7003S Hydraulic Roller Valve Lifters set at Amazon. We do not, however, have core PCM's for this engine so you would have to send your PCM in for the flash. 496 MAG Performance Parts Performance Applications Chevy / GM Trucks We are currently out of clean/painted cases for the PCM's. I borrowed a friends TBI 454 dually to pull my blazer one time and it impressed the **** outta me. Can i tell if my RV has this already? 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. Im interested to know if you change the shift points or anything like that cause I have a shift kit in the transmission already. 16238212. We require the VIN so that we can pull up your vehicle's specific parameters and create a truly customized tune for your vehicle. The heads used on the L29 combined the large oval intake ports with small (100 cc) combustion chambers to produce a slightly higher (than the Gen V) 9.0:1 compression. Some differences are: 1. Apr 14, 2016. Also I have Thorley tri Y hearers on mine will that effect the tune? The results: 567 horsepower and 537 pound-feet of torque on 89-octane pump gas! We only specialize in the big block engines. 2. what features will i gain with this new unit. What are your recommendations?? The exhaust does not have CATS with dual to the muffler and single exit tailpipe. 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 engine receives cooler, more oxygen-dense air through a chilly air induction system. O-rings: Top and bottom, 14.5 mm - Viton. We are unaware of any cam upgrades specifically for the L21. 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. So if I have your tune done what is the turn around time sending my PCM to you? 5. And a k and n filter. I read in earlier questions asked that you had stopped doing the earlier ones. The 1970 Chevrolet 454 was the most powerful with outputs of 360 and 450 horsepower from the LS5 and LS6, respectively. Buy in monthly payments with Affirm on orders over $50. He could even be found working on tractors or hay bailers while on vacation at his uncles farm. Normally, advancing the distributor would increase octane sensitivity and possibly fuel economy, but the upgraded ignition system will allow you to do so without adversely affecting fuel burn or horsepower. I have a 1996 Suburban K2500 with the L29 engine and 4l80 trans. Using 3.5-inch aluminum tubing from CXRacing, we configured the intercooler between the YSI supercharger and the blow-through carburetor bonnet. Yes, we could accept the PCM from your '98 as the core. 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. Hello I have 2000 GMC k3500 Truck. 1999 Crew cab dually, 454 vortec, AUTOMATIC. 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". We will safeguard your e-mail and only send content you request. It was utilized in both performance automobiles and trucks, as well as maritime and industrial applications in various combinations. is this unit ready for plug and play. Yes - We can definitely take advantage of the current modifications done to the truck and really help it out. "SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines. will your new part ecm work on this motorhome. This is only 1 of the many changes that we make with our programming to achieve great power gains. A restrictive or clogged air filter will force the engine to work harder to breathe, which makes it less efficient. Im doing a full build on the motor Ive been told that these injections systems dont do well with these kind of upgrades. Thank you. I THINK I want a diesel until I look at the prices. The air filter is easily removed, cleaned, and reused. Dodge RAM 3.0 Ecodiesel Performance Upgrades Guide, Best Ford 6.7 Powerstroke DPF Delete Kit Upgrade. Great motor and runs strong with gobs of TQ. Buy your Painless Performance 60211 Standard Length MPFI Harness for 1996-2000 GM Vortec 7.4L V8 at Amazon! If not can a non uhaul ecm be used (ie plugged into the current harness)? To find out just how much the 30-year-old behemoth could muster, they took it to Westech Performances dyno room. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidaysareprocessed on thenext business day. There is a small red wire that has never been connected to anything. How To Add 70 Percent More Power to A Chevy 454 V-8. Been reading the net the last few days on power upgrades for my truck after reading the "best year diesel" thread on here. 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. Any thoughts from you technical guys? 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. The Vortec enhancements simply allowed GM to pass smog at a higher RPM. Maybe I need to go by the dealer and test drive a diesel or another gasser so I have a comparison. I have a 1999 3500 Chevy crew cab with the 7.4l 454 Ive got Gibson headers true dual exhaust with flow masters no cats. Precision Auto Injectors Genuine Delphi 12568155 12586557 GM Fuel Injectors Set of 6 2004-2007 GM 3.5L OHV. I have a 98 C-3500 dually with a Vortec 454. 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. I just purchased your UltraPower GM / Workhorse 1998-2000 7.4L Vortec (454) Custom Tuning. . It will not void your factory warranty, and does not modify any emissions systems. Free shipping. what does this do at emission inspections?? Thinner oil drags less on internal engine parts, helping the engine to spin more freely and run more efficiently. We CAN tune the engine computer with our UltraPower tuning to get more performance but we MUST have you send your PCM in to us for programming as it has a unique PCM that we don't have cores for. 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. 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. If you had the proper tuning software, you could tune it yourself later. If you continue to use this site we will assume that you are happy with it. Truck is stock otherwise and runs good just looking for more out of it. The main improvements will be improved shifting and overall more torque to pull hills. Thanks, WILL THE 2000 1 TON DULLY I HAVE STILL PASS CAL SMOG WITH THIS TUNE UP EMC. Seems like it's lacking power towing my boat. 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. Wiring is the same. I was interested in your tune for this engine and was wondering what your best guess on the horse power / toque gains would be. 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. The 1993-or-so design FEAD has been shown the clear the factory hood. The Vortec 7400 as you know lays down 290 HP and 410 LbFt of Torque. 3. That is the difference between cookie-cutter and custom! Based on experience, we have had good results with Comp Cams 212/218 hydraulic roller camshaft. Find many great new & used options and get the best deals for BBK Performance Parts 1710-XC 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. Thanks. With our tuning, peak horsepower is at about 3500 RPM and peak torque is about 2500 RPM. During its five years on the market, the 7400 was employed in 26-foot U-Haul trucks for commercial purposes. When you buy a single component or a complete kit, like a camshaft, you must ensure that it is suitable for your car. The banks system will give you 70hp and 85lb-ft. Install an aftermarket windage tray in your engine. Jump to Latest Follow . 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 $. Typical gains are 40-45 horsepower and 45-50 lb-ft torque, 4. We can even modify these Chevy 454 rebuild kits to your specifications, giving your vehicle exactly what it needs for maximum performance. But like any stock engine, there was tons of power left to be squeezed out. Sorry I dont have the VIN, the truck is not local, I have a 1998 2500 7.4 Vortec GMC Suburban. Check out their web sight Bankspower.com Please see our shipping terms for more information. Engine is in stock configuration with no upgrades. merci. How to Get More Horsepower From a 360 dragster engine image by Robert Young from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. Is the pcm that is used a 411? 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. They have a high strength carbon steel housing and a high performance rolled seam that exceeds OEM pressure requirements. What is the difference between a Duramax 6.6-liter and a Chevrolet 7.4-liter engine? Hot Rod decided to bolt up some typical speed parts. We'll send you the most interesting Street Muscle articles, news, car features, and videos every week. vortechsuperchargers.com. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. After configuring a discharge tube and adding some race fuel, we slowly supplied boost to the boneyard big block. Both Vortec 7400 heads (the '98-'01 12560241 and the '96-'01 10141279) have about 100cc chambers. 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 was produced as a gas alternative to the new Duramax LB7 diesel, offering a high-torque gas engine capable of towing just about anything. I have Bosch Gen III injectors; Volant Air intake; and 3 exhaust. If I send in a functional pcm for my Suburban mentioned in last question whats the average turn around for it? 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. Vise grip, needle-nose and standard pliers. Could you do a downstream 02 sensor delete? The budget portion of the equation came from a 7.4L Gen VI big-block Chevy straight out of the local wrecking yard. Later i want to install the banks PPB 49070 package on this motorhome next year. Also known as the Vortec 7400 (7.4L, Regular Production Option designation L29), Chevrolet's Vortec 454 was a modern-day evolution of the company's most legendary big block.
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