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6272990 1970 454 Open 118cc service replacement mkIV 10045427 400/454/455 . . Pontiac/chevy aluminium small port /race 10051128 1990-94 454 Semi Open 72cc IP 400cc, bowtie, sym port 12363401 1996-up . Open 118cc bowtie aluminium mkIV gen.V gen.VI 12562934 2000-up 502 Open . gen.VI 502 marine 14011077 1989-94 454 Open 118cc IP 295cc, replacement. It was a factory installed 454 Mercruiser w/330hp with a Bravo 1 outdrive . I am looking to replace the motor with a 454 H.O 'crate ' motor from Jeg's Performance. The motor I am looking at is a 454 w/425 [email protected] RPM and 500 ft. lbs @ 3250 RPM. The motor is a Gen IV block with forged steel crank, windage tray, forged pistons, forged shotpeened. Nov 05, 2011 · It's a 454, or bigger, it's not a 350, trying to make it breath through 205 degrees @ 0.050 is like feeding it through a straw. With a 205 @ 0.050" flat tappet and 8:1 compression, especially on 110 with 6 degrees advance, torque is over with at 3000 RPM, and there simply is not HP.. The bill: $3,699.96 for all but the carb. The results: 567 horsepower and 537 pound-feet of torque on 89-octane pump gas! That represents a 70-percent increase in horsepower. That’s impressive. Hardcore Horsepower Builds 550-horse 87-octane Big-block On a Budget. By Jason Reiss June 07, 2013. Reliable 87-octane, big horsepower has been the Holy Grail for both enthusiasts and engine builders for some time now, with many choosing forced-induction to achieve that goal. However, boost is not necessary to achieve dyno-twisting numbers. Sep 14, 2015 · Forget the typical race-motor build up, Boneyard Boost was all about force feeding some tired, high-mileage workhorse we purchased for the paltry sum of $500 ($250 on half price sale weekend!). 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.. Joined Nov 10, 2009. 3,101 Posts. #8 · Jan 7, 2013. no use in mpg with a 454 IMO. Just keep it stock, stock tires and keep with maintenance... clean the egr vavle, run some seafoam through the intake to clean some of the carbon buildup out thats restricting flow, keep tires at right psi, ect. You dont buy a 454 truck for gas mileage, you buy. Forget the typical race-motor build up, Boneyard Boost was all about force feeding some tired, high-mileage workhorse we purchased for the paltry sum of $500 ($250 on half price sale weekend!). 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. 7,979 Posts. #2 · Aug 24, 2011. nope 8.5mpg is normal for the 454. Now most people who are getting better milage are running the new 5.3L V-8 vortec which does get those numbers. but with the GM big block they always got crummy milage. And 1999 is the last year for the 454 after that it was the 8.1L which isnt even made either, and that was a. Mine gets about 7 MPG with 7500lbs behind it. Crew cab dually 454 4.10 gear and a TH400 ( 2 wheel drive ). The Sub. was about the same. If I had the cash I'd be towing with a Power Stroke. Crew cab dually 454 4.10 gear and a TH400 ( 2 wheel drive ). The biggest change for big block trucks occurred in 1979, when GM removed the 454 from the half-ton order sheet and made it the exclusive province of its heavy-duty truck line-up. This decision would hold throughout the 1980s, with the Chevy 454 gaining a fuel injection boost in 1987. This motor, dubbed the L19, featured the same cast iron. In 1970, GM pushed the performance bar higher with the introduction of the Chevy 454 V8. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. There were 3 different variations of the 454 that came onto the drawing board at GM during the 70s; the LS5, the LS6, and the LS7 which. Re: 454, 5 spd mpg question 08-03-05 06:17 PM - Post# 753235 In response to alfalfa6945 I'm new in this part of the forum. I was looking for ideas to improve the mileage on my K3500 454/t400. I got 6 mpg pulling a loaded. The Vortec 7400 was based on Chevrolet’s 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. For GM vehicles, the Vortec variant increased power by 60 horses. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. This engine series was utilized on Chevrolet and GMC large truck models such as .... 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. $19,157 MSRP † PART NO. 12568774 438 HP @5300 RPM. The table below shows all 1998 Chevrolet K3500 specs by style, including MPG (fuel economy), transmission details, and interior and exterior dimensions. Additionally, find 1998 Chevrolet Additionally, find 1998 Chevrolet K3500 warranty and reliability information, such as limits on bumper-to-bumper coverage and major components. The age of muscle cars peaked as the 1970s began — and the 1970 Chevrolet Chevelle SS 454 helped to herald the ascent. When GM lifted its displacement ban on midsize cars, Pontiac, Olds, and Buick responded with 455-cid mills with up to 370 bhp. Chevy's retort was a 454-cid V-8 that started at 360 bhp and ended at a barbaric 450. This was. The 454 died in 2000 to 2001, but the vans dropped it after 2000. So they only got the Black Box PCM on them. Vans in 2000 got only BB PCM's, 2001, they got BB or 0411. 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. Wiring is the same. Apr 27, 2021 · Capable of accelerating from 0 to 60 mph in only 7.2 seconds, the Chevy muscle truck was absolutely one-of-a-kind. The engine pulls best at low rpm, so quarter-mile time was not that impressive, taking 15.8 seconds. via gmauthority.com. In the early '90s, there were other muscle trucks ready to challenge the Chevy 454 SS, such as the .... According to the EPA’s fuel economy calculator, trading in a given vehicle that gets 25 mpg for one that gets 50 mpg would save a motorist $1,794 annually, based on 15,000 miles driven per year. The good news is that the 454 didn’t completely die after 1974 but was used up until 1996 in many Chevy heavy duty trucks. More good news is that today the 454 is one of the favorites among Chevrolet performance enthusiast which means that there is an ample supply of engine parts available for the 454 that really push the horsepower on these .... Joined Nov 10, 2009. 3,101 Posts. #9 · Jun 16, 2012. the mpg of a 454 is LOL towing or not towing. agree would much rather have a 8.1L truck. i get about 11mpg in my 6.0L so a 454 would have to get somehwere in the neighborhood of 7-9mpg. 05 LLy ecsb, leveled, 285's, Banks intake and 6-gun, straight piped, lbz mouthpiece. 2019. 7. 3. · Unsurprisingly, gas mileage was abysmal: 9–11 mpg on average. Built in limited numbers—about 17,000 or so, with 80 percent of those produced in 1990—the. Make plenty of low end and mid range power to get that truck moving. You will have to convert to an adjustable drive train with any after market camshaft. We have a kit that is designed for the 454. Gets you new studs, spacer, rocker nut and roller tip rockers for $285.59. Camshaft runs $306.86. first year with engine LT1 Small-Block and 454 in ³ Big-Block: 1971: 21801: reduced HP. 1972: 27004: last year the front chrome bumper, LT1, a new option is. Click here to view all the Kawasaki EN450A 454 LTDs currently participating in our fuel tracking program. 1990. 26.5 Avg MPG. 1 Vehicle. 8 Fuel-ups. 395 Miles Tracked. View All 1990 Kawasaki EN450A 454 LTDs. 1988. 48.0 Avg MPG. Re: 454 , 5 spd mpg question 08-03-05 06:17 PM - Post# 753235 In response to alfalfa6945 I'm new in this part of the forum. I was looking for ideas. Base pricing and torque ranges for Iron Head engines: Chevy 454 ci, 375 HP = from $4795 — 455 to 470 ft lbs torque. This engine comes with the MSD HEI distributor. Add the MSD 2 pack distributor or the MSD 3 pack distributor for an extra charge, depending upon the options you want. Chevy 454 ci, 402 HP: from $4995 — 460 to 485 ft.. Joined Mar 29, 2001. 6,245 Posts. #10 · Jan 12, 2004. go with cold air intake from K&N and youll notice a difference, I just put Hypertech on my 327 Vortec, got to say nice program, I calibrated to my tire size, changed my shift points, and took off my governor, now I can go 128 LOL, and my truck hauls ass. worth every penny. Nov 5, 2013. #8. My Dad's TBI 454 with headers, mild cam, Edelbrock intake, 465/GV OD unit/4.10's/~33's will get about 12-13MPG on the freeway. I don't think you'll see much better than that. No matter how much money people spend on whatever parts for these trucks, aerodynamics seems to be the #1 killer of MPG. Feb 03, 2006 · Feb 3, 2006. #4. I towed a lot with a 4L80.I ran it in OD when it would stay in gear. I pulled 14,000 lbs a couple times. (It had a supercharger) The biggest concern like said above is heat. The TC on these doesn't lock. Re: 1985 454 mpg. « Reply #5 on: May 21, 2015, 06:15:47 PM ». The engine and what you're hauling alone don't determine MPGs, there are so many factors that go into it. Tire size, gear ratio, transmission, how fast you drive, ambient temp, humidity, altitude, condition of the engine, wind... But 7 MPG is a pretty good guess. 20,000 miles per year divided by 18 mpg = 1,111 gallons of fuel per year. Multiply that figure, 1,111, by $3.00 per gallon for an estimate of $3,333 per year for fuel. Now take $3999 (before modifications) and subtract $3,333 (after modifications) to find your yearly fuel savings, $666. Divide the cost of modifications, $1,000, by the savings. In the 454 SS, that engine now made 255 horsepower-25 more than in 1990. 1992 C/K Pickup ... were bumped again-to 230 horsepower for the 5.0-liter and 255 horsepower for 5.7-liter-resulting in slightly lower fuel economy. Diesel ohv V8 1: Engine Size (liters/cubic inches) 6.2/379: Engine HP: 140-143: Engine Torque (lb-ft) 255: Avail. Trans. Aug 26, 2011 · The GM 454 (7.4) is a great engine. The basic engine is a real workhorse. The following is just my opinion. I feel that any coach up to 34' is just about the max for a gas engine. 37' might be a little too much for the 454. That being said, if you drive it right it should do the job for you.. It towed 7k just fine, but you knew you were towing 7k right off the bat. (namely, you auctally got to use the first gear). On an empty run, my best was approximately 22mpg. Thats running at 65 with 4.10 gears and stock tires. Worst was 15mpg empty (80mph). towing at around 65 netted an average of about 14-15 mpg. OEM LSX 454 Features& Specifications. Download Specs. Lighter and more compact than an original Big-Block 454, the LSX 454 is filled with a super-tough rotating assembly and features a pair of our deep-breathing CNC’d ported cylinder heads. TYPE: 7.4L Gen-IV V8 Small-Block. DISPLACEMENT: 7400 cc (454 ci). Aug 26, 2011 · The GM 454 (7.4) is a great engine. The basic engine is a real workhorse. The following is just my opinion. I feel that any coach up to 34' is just about the max for a gas engine. 37' might be a little too much for the 454. That being said, if you drive it right it should do the job for you.. Jun 07, 2010 · We build a 700hp 454 engine for $2,403. Richard Holdener Writer Jun 7, 2010 See all 7 photos It seems a certainty that Chevy guys would rather eat dirt than drive a Ford, but not all Chevy guys.... . The Vortec 7400 was based on Chevrolet’s 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. For GM vehicles, the Vortec variant increased power by 60 horses. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. This engine series was utilized on Chevrolet and GMC large truck models such as .... The 366 cubic inch (6.0 liter ) Big Block V-8 gasoline engine was utilized in Chevrolet medium duty trucks, school buses, and police cars, among other vehicles.3.935 in. . It had the stock 2-barrel, stock rear-end, and turbo 350 automatic. I could usually get 17 mpg on the highway with no problems. My current '70 with 350, 4-speed, Holley 4-barrel, original open 2.73 rear-end can get 19-20 mpg on. It had the stock 2-barrel, stock rear-end, and turbo 350 automatic. I could usually get 17 mpg on the highway with no problems. My current '70 with 350, 4-speed, Holley 4-barrel, original open 2.73 rear-end can get 19-20 mpg on. Getting 7-9 mpg towing, 10-12 unhooked. 4.10 rear end, '99/454 Vortec. It's hard to overwork, so can last a while but at 120K it's starting to nickel/dime me with typical "growing old" stuff. I only use it for towing any more and plan on driving her until it snows in Panama. Jan 01, 2022 · The LSX 454 crate engine is a 21st-century upgrade to the legendary Chevy 454 big block race engine. Learn more about dyno specs, installation & more.. Forget the typical race-motor build up, Boneyard Boost was all about force feeding some tired, high-mileage workhorse we purchased for the paltry sum of $500 ($250 on half price sale weekend!). 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. Re: 1985 454 mpg. « Reply #5 on: May 21, 2015, 06:15:47 PM ». The engine and what you're hauling alone don't determine MPGs, there are so many factors that go into it. Tire size, gear ratio, transmission, how fast you drive, ambient temp, humidity, altitude, condition of the engine, wind... But 7 MPG is a pretty good guess. Check for the cause of the problem and correct it. The engine should start quickly and be run between 1,500 to 3,000 rpm. Vary the rpm up and down in this rpm range for 20 minutes. During break-in, verify that the pushrods are rotating, as this will show that the lifters are also rotating. Diesel engine RV's are more fuel-efficient than gas RVs. The average gas RV gets circa 6-10 miles per gallon, while a diesel motorhome will be 8-14 mpg range. In this article, we're going to look into your options to get the best Motorhome Gas Mileage. Nov 5, 2013. #8. My Dad's TBI 454 with headers, mild cam, Edelbrock intake, 465/GV OD unit/4.10's/~33's will get about 12-13MPG on the freeway. I don't think you'll see much better than that. No matter how much money people spend on whatever parts for these trucks, aerodynamics seems to be the #1 killer of MPG. Re: 454, 5 spd mpg question 08-03-05 06:17 PM - Post# 753235 In response to alfalfa6945 I'm new in this part of the forum. I was looking for ideas to improve the mileage on my K3500 454/t400. I got 6 mpg pulling a loaded. first year with engine LT1 Small-Block and 454 in ³ Big-Block: 1971: 21801: reduced HP. 1972: 27004: last year the front chrome bumper, LT1, a new option is. The Vortec 7400 was based on Chevrolet’s 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. For GM vehicles, the Vortec variant increased power by 60 horses. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. This engine series was utilized on Chevrolet and GMC large truck models such as .... Oct 03, 2017 · The bill: $3,699.96 for all but the carb. The results: 567 horsepower and 537 pound-feet of torque on 89-octane pump gas! That represents a 70-percent increase in horsepower. That’s impressive .... This Jinma JM-454 is powerd by a diesel engine it has 185.4 ci or 3.0 L 3 cylinders ,it can produce 45 hp or 33.6 kW at 2200 (rpm),. This machine has 4x4 MFWD 4WD wheel drive system,8 forward and 4 reverse transmission system. - Jinma provided us with the latest version of its JM-454 service repair manual. - Find All mechanical and electrical .... I want to build and buy my second pc. I have the case Aquirys Antares ARGB and want to buy MSI MPG B550 Gaming Plus. It has jRGB but I don't know if it works with aRGB from the case. If it doesn't work can you recommend me another motherboard that has aRGB from MSI and in the same price range? Yeah, it'll be called JRAINBOW. Bosch OEM, MADE IN USA. Part Number: 0280155884 GM. OEM. $57.50. Add to Cart. Skip to the end of the images gallery. GM Chevrolet Chevy 7.4L (J) OEM Fuel Injector Upgrade, Brand New Bosch Generation III Injectors. Factory Flow Matched Set of 8. Skip to the beginning of the images gallery.. The Vortec 7400 was based on Chevrolet’s 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. For GM vehicles, the Vortec variant increased power by 60 horses. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. This engine series was utilized on Chevrolet and GMC large truck models such as .... Mar 10, 2020 · Turbocharged Gen V 454 cid Big Block Chevy. After building more than 700 engines in his career, Joshua Gomez of MotorVation Performance, wanted to build himself an engine that was affordable, fast and stayed together. He hot rodded this 454 cid Gen V big block Chevy to the tune of 1,800 horsepower. Find out what went into the build!. Sep 14, 2015 · Forget the typical race-motor build up, Boneyard Boost was all about force feeding some tired, high-mileage workhorse we purchased for the paltry sum of $500 ($250 on half price sale weekend!). 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.. May 26, 2007 · I was just starting on a 383 engine and I found a 454 bored to 468. It has a roller cam, oval port heads, good intake and carb. The engine dynoed at just over 500 hp. I can get a decent deal on it and it is complete carb to pan. The only negative it is a 2 bolt main block. How much horsepower can these take? It has a new scat cast crank and rods.. We Build A 700HP 454 For $2,403 without braking the bank. It seems a certainty that Chevy guys would rather eat dirt than drive a Ford,. That said though, the roller cam setup solves several of the issues that I found with my brothers Gen V 454. 1. GM put wimpy 5/16″ pushrods that bend at the slightest stress like a decent .500 lift cam trying to open big block valves. roller cam kit comes with 3/8″ hardened pushrods which can withstand a BIG cam. 2. Jan 10, 2016 · Comes on strong at about 2,500 and spins right to the 5,200 rpm shift. The topic of low compression 454 tow motors comes up quite often. Joe Sherman praises the old Isky 264 Mega Cam, 214 @ 0.050" on a 108 LSA. Others agree to the success with short duration tight LSA cams, some as low as 106°.. Re: 454 , 5 spd mpg question 08-03-05 06:17 PM - Post# 753235 In response to alfalfa6945 I'm new in this part of the forum. I was looking for ideas. Let's look back at the Chevy C1500 454 SS. Where the GMC used a high-tech turbocharged V6, the Chevy was powered by something much more old-school—a 7.4-liter big-block V8. ... City mileage was. The 454 TBI typically came with standard 4.10:1 gearing, sometimes 3.23:1 in pickups, ( rumors of 3.42:1 in vans ) and the 4L80E was a 0.75:1 OD, while the NV4500 is 0.73:1. The 454 could happily pull a 3.42:1 with stock Od and a GearVendors, and get empty MPG in the upper teens. I know a guy who is doing exactly that. 1970 is largely considered to be the best year of the Chevelle. This world-famous muscle car has become the iconic image of the muscle car era. In 1970, the Chevelle came with a wide array of options from the factory, from the base Malibu package, all the way to the LS6 454 Chevelle. In 1970, the name of the game was pure horsepower. The LS6 option Chevelle's came with a. Let's look back at the Chevy C1500 454 SS. Where the GMC used a high-tech turbocharged V6, the Chevy was powered by something much more old-school—a 7.4-liter big-block V8. ... City mileage was. 7,979 Posts. #2 · Aug 24, 2011. nope 8.5mpg is normal for the 454. Now most people who are getting better milage are running the new 5.3L V-8 vortec which does get those numbers. but with the GM big block they always got crummy milage. And 1999 is the last year for the 454 after that it was the 8.1L which isnt even made either, and that was a. The 427 cubic-inch big-block is an iconic engine. The big-block guys will say that the small-block weighs less, and therefore should have an advantage. However, they will also say the big-block delivers more torque, and has the advantage of better head flow, so it can overcome the extra weight disadvantage. The small-block guys will come in and. 454 build for towing. after 200.000 mls it is time to rebuild my 454 TBI engine. At same time I will get rid of that crappy TBI setup and change to a full sequentiell EFI using Vortec parts, distributorless ignition with coils and PCM from a LS1 which I can easily programm myself to my liking. I need torque not hp for my heavy race trailer and. Click here to view all the Kawasaki EN450A 454 LTDs currently participating in our fuel tracking program. 1990. 26.5 Avg MPG. 1 Vehicle. 8 Fuel-ups. 395 Miles Tracked. View All 1990 Kawasaki EN450A 454 LTDs. 1988. 48.0 Avg MPG. What are everyones ideas on improving fuel economy? What is the best strategy for timing and afrs?? particularly in cruise cells such as 1600 35-40-45map 2000 35-40-45 map 2400 35-40 -45 map I am aiming for more timing and lean afrs of 15.3-15.5 Also have optimized DFCO settings and dropped idle in park as slow as possible. manufactured by Chevrolet (USA) in United States ; 2-door coupe body type; RWD (rear-wheel drive), manual 4-speed gearbox; gasoline (petrol) engine with displacement: 5733 cm3 / 349.8 cui, advertised power: 145.5 kW / 195 hp / 198 PS ( SAE net ), torque: 373 Nm / 275 lb-ft, more data: 1974 Chevrolet Corvette Stingray 350-4 V-8 Turbo-Fire (man.4) Horsepower/Torque Curve. Click here to view all the Kawasaki EN450A 454 LTDs currently participating in our fuel tracking program. 1990. 26.5 Avg MPG. 1 Vehicle. 8 Fuel-ups. 395 Miles Tracked. View All 1990 Kawasaki EN450A 454 LTDs. 1988. 48.0 Avg MPG. BASICS. most 454 engines came with a rather low compression ratio and oval port heads, ,theres a wide variation in the engine potential in stock form, a 454 with peanut port heads and 8:1 compression , and a cast crank with 3/8" rods is at a disadvantage compared to the performance bbc engine versions, with 11:1 compression ratio big block that. Fuel Economy of 1986 Chevrolet Vehicles. EPA MPG Owner MPG Estimates 1986 Chevrolet Corvette 8 cyl, 5.7 L, Automatic 4-spd Regular Gasoline: Not Available. How can I share my MPG? Combined MPG: 18. combined. city/highway. MPG. City MPG: 15. city. Highway MPG: 22. highway. 5.6 gals/100 miles. Today I drive the 1986 chevy c10 to the mountains and back to test how bad the fuel economy is on my 383 stroker truck!Get your SQUAREBODY MERCH here: https:. Mar 21, 2016 · Good all around gear ratio for 454/TH400? - Drivetrain Tech - First Generation Monte Carlo Club. By Grapejuice1998, March 21, 2016 in Drivetrain Tech. 0.. The Vortec 7400 was based on Chevrolet’s 1995 7.4-liter 454-cubic inch V8 big block, which produced 230 horsepower. For GM vehicles, the Vortec variant increased power by 60 horses. The engine displacement in liters is 7400, which is readily changed to 7.4 liters. This engine series was utilized on Chevrolet and GMC large truck models such as .... . Jul 03, 2019 · Unsurprisingly, gas mileage was abysmal: 9–11 mpg on average. Built in limited numbers—about 17,000 or so, with 80 percent of those produced in 1990—the Chevrolet 454 SS pickup arrived before the 1991 GMC Syclone pickup and 1992–93 GMC Typhoon SUV. The compact GMC performance trucks are rarer and faster, however, meaning they’re also .... The 454 died in 2000 to 2001, but the vans dropped it after 2000. So they only got the Black Box PCM on them. Vans in 2000 got only BB PCM's, 2001, they got BB or 0411. 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. Wiring is the same. Joined Nov 10, 2009. 3,101 Posts. #8 · Jan 7, 2013. no use in mpg with a 454 IMO. Just keep it stock, stock tires and keep with maintenance... clean the egr vavle, run some seafoam through the intake to clean some of the carbon buildup out thats restricting flow, keep tires at right psi, ect. You dont buy a 454 truck for gas mileage, you buy. May 14, 2010 · My 81 Z28 currently has a stock 350 chevy with Headers and a 3.73 posi rear. The tranny is a th350. I was thinking of putting in a mild 454 but i still want descent mileage. I was told that I could get around 15 mpg if I drive it nice. Is it possible to get close to that? also i need to know what i need to do to make way for the 454. Any thoughts?. Forget the typical race-motor build up, Boneyard Boost was all about force feeding some tired, high-mileage workhorse we purchased for the paltry sum of $500 ($250 on half price sale weekend!). 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. Jul 10, 2005 · It was a factory installed 454 Mercruiser w/330hp with a Bravo 1 outdrive . I am looking to replace the motor with a 454 H.O 'crate ' motor from Jeg's Performance. The motor I am looking at is a 454 w/425 [email protected] RPM and 500 ft. lbs @ 3250 RPM. The motor is a Gen IV block with forged steel crank, windage tray, forged pistons, forged shotpeened .... 20,000 miles per year divided by 18 mpg = 1,111 gallons of fuel per year. Multiply that figure, 1,111, by $3.00 per gallon for an estimate of $3,333 per year for fuel. Now take $3999 (before modifications) and subtract $3,333 (after modifications) to find your yearly fuel savings, $666. Divide the cost of modifications, $1,000, by the savings.

. In 1970, GM pushed the performance bar higher with the introduction of the Chevy 454 V8. Unlike the popular Chevy 427 that was used in a wide variety of automobiles, the 454 was used only in high performance cars like the Chevy Camaro, Corvette and Chevelle. There were 3 different variations of the 454 that came onto the drawing board at GM during the 70s; the LS5, the LS6, and the LS7 which. Joined Nov 10, 2009. 3,101 Posts. #8 · Jan 7, 2013. no use in mpg with a 454 IMO. Just keep it stock, stock tires and keep with maintenance... clean the egr vavle, run some seafoam through the intake to clean some of the carbon buildup out thats restricting flow, keep tires at right psi, ect. You dont buy a 454 truck for gas mileage, you buy. Nov 20, 2014 · We Build A 700HP 454 For $2,403 without braking the bank. Richard Holdener writer. Nov 20, 2014. See all 19 photos. It seems a certainty that Chevy guys would rather eat dirt than drive a Ford .... The newest 5.3 gets better mpg -and average driver in pure city can get 13-14 mpg no effort-in city driving- make some effort and you get 15-16 city. Fuel Economy of 1986 Chevrolet Vehicles. EPA MPG Owner MPG Estimates 1986 Chevrolet Corvette 8 cyl, 5.7 L, Automatic 4-spd Regular Gasoline: Not Available.. OEM. $459.00. Add to Cart. Skip to the end of the images gallery. GM Chevrolet Chevy 7.4L (J) OEM Fuel Injector Upgrade, Brand New Bosch Generation III Injectors. Factory Flow Matched Set of 8. GM Chevrolet Chevy 7.4L (J) OEM Fuel Injector Upgrade, Brand New Bosch Generation III Injectors. 4-hole outlet nozzle for maximum fuel atomization. Seems we are both heading in same or similar direction here. The incentive for me is this: my son had a '99 Yukon 4wd with 350 and auto, and he could pull low 20s on interstate. I feel the 454 is capable of approaching 20 mpg much closer than it. 1973. GM. The 1973 square body trucks were new from bumper to bumper, with a tougher look than either Dodge's new, rounder D-series (1972-1980) or the sixth-generation (1973-1979) Ford F-series. But the General's trucks also benefited from modern computer simulations, long before production, in the interest of increased durability. . I want to build and buy my second pc. I have the case Aquirys Antares ARGB and want to buy MSI MPG B550 Gaming Plus. It has jRGB but I don't know if it works with aRGB from the case. If it doesn't work can you recommend me another motherboard that has aRGB from MSI and in the same price range? Yeah, it'll be called JRAINBOW. 454 mpg? Jump to Latest Follow 1 - 4 of 4 Posts. C. Chris W · Registered. Joined Jul 16, 2004 · 612 Posts . Discussion Starter · #1 · May 28, 2005. I am about to traid my. 2015. 9. 14. · Forget the typical race-motor build mileage. It had the stock 2-barrel, stock rear-end, and turbo 350 automatic. I could usually get 17 mpg on the highway with no problems. My current '70 with 350, 4-speed, Holley 4-barrel, original open 2.73 rear-end can get 19-20 mpg on. My old '94 2wd, 5.7 Ext Silverado with 3.42 rear end, 125K, would get as an average about 10 mpg in town, and 17 mpg highway. The in town mileage would suffer because of all of the hills and cold weather. 396 and 427 BBC have the same stroke and the same length rods. These engines have a good stroke rod length ratio. I think very similar to a 327, which was ideal. 350 SBC used the same length rods as a 327. To fix a 350 ya' need to put 6" rods in it to make it more like a 327. And a 454 could use longer rods to make it more like a 427. The LSX 454 crate engine is a 21st-century upgrade to the legendary Chevy 454 big block race engine. Learn more about dyno specs, installation & more. ... Find everything from vital data about your engine's capabilities to how to install it into your build. Installation Guides LSX454 Tech Specs. Part Number: 19355573;. The 454 TBI typically came with standard 4.10:1 gearing, sometimes 3.23:1 in pickups, ( rumors of 3.42:1 in vans ) and the 4L80E was a 0.75:1 OD, while the NV4500 is 0.73:1. The 454 could happily pull a 3.42:1 with stock Od and a GearVendors, and get empty MPG in the upper teens. I know a guy who is doing exactly that. Aug 26, 2011 · The GM 454 (7.4) is a great engine. The basic engine is a real workhorse. The following is just my opinion. I feel that any coach up to 34' is just about the max for a gas engine. 37' might be a little too much for the 454. That being said, if you drive it right it should do the job for you.. Re: 454 build help. « Reply #1 on: April 15, 2012, 07:08:48 pm ». You need to do some serious research before you start a build of that caliber. It's not too difficult to build one in the 500-550 range but to push past 600hp that will live in a jet boat will take some expensive, quality parts. The easiest way to make that kind of power would. Boat has a 454 with an 800 DP, truck a 460 with a 750 DP. Just thought that was interesting. When my '86 was bone stock height and bone stock 351w with a C6 it could squeeze about 16-17 MPG highway at 70-75. I believe a stock height truck with a 460 and a ZF5 should be able to do the same. Felpro Head Gasket Set HS9502PT 454 7.4L $20 (Anoka) pic hide this posting restore restore this posting. favorite this post May 28 454 chevy parts. These cylinder heads are cast iron, rectangle port heads with 118cc combustion chambers, 2.19" intake valves, and 1.88" exhaust valves. First of all, a little info on Chevy BB heads. There were basically 3 used on 454's from the late 80's into the 90's and they're all open chamber. There's a difference between oval port heads and what's referred to as peanut ports. The peanut port is what's used in later 454's and probably wasn't used before the later 90s.. Joined Nov 10, 2009. 3,101 Posts. #8 · Jan 7, 2013. no use in mpg with a 454 IMO. Just keep it stock, stock tires and keep with maintenance... clean the egr vavle, run some seafoam through the intake to clean some of the carbon buildup out thats restricting flow, keep tires at right psi, ect. You dont buy a 454 truck for gas mileage, you buy. Oct 03, 2017 · The bill: $3,699.96 for all but the carb. The results: 567 horsepower and 537 pound-feet of torque on 89-octane pump gas! That represents a 70-percent increase in horsepower. That’s impressive .... Apr 18, 2018 · 20,000 miles per year divided by 18 mpg = 1,111 gallons of fuel per year. Multiply that figure, 1,111, by $3.00 per gallon for an estimate of $3,333 per year for fuel. Now take $3999 (before modifications) and subtract $3,333 (after modifications) to find your yearly fuel savings, $666. Divide the cost of modifications, $1,000, by the savings .... Get detailed information on the 2000 Chevrolet C3500 including specifications and data that includes dimensions, engine specs, warranty, standard features, options, and more. Sep 15, 2005 · We recently swapped the 454 and running gear out of an 86 3/4 ton suburban into our 89 suburban. With 3.73 rear gears, a TH400 tranny and 245/75R16 tires it gets about 8-10 mpg. That's with a stock intake, dual exhaust out of stock manifolds, and a stock Q-Jet with the stock cam.. What are everyones ideas on improving fuel economy? What is the best strategy for timing and afrs?? particularly in cruise cells such as 1600 35-40-45map 2000 35-40-45 map 2400 35-40 -45 map I am aiming for more timing and lean afrs of 15.3-15.5 Also have optimized DFCO settings and dropped idle in park as slow as possible. 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. GAS MILEAGE. Always a big complaint with 454 TBI trucks. 90 and older is particularly bad and that is largely due to NO OVERDRIVE.. Jul 10, 2005 · It was a factory installed 454 Mercruiser w/330hp with a Bravo 1 outdrive . I am looking to replace the motor with a 454 H.O 'crate ' motor from Jeg's Performance. The motor I am looking at is a 454 w/425 [email protected] RPM and 500 ft. lbs @ 3250 RPM. The motor is a Gen IV block with forged steel crank, windage tray, forged pistons, forged shotpeened .... Ford Performance Parts M6007-M50C 2018-2019 Coyote 5.0L Crate Engine. Check Latest Price. Summary. It's a Coyote. It's ready to scream out to produce 460 horsepower and instantly revive your. That said though, the roller cam setup solves several of the issues that I found with my brothers Gen V 454. 1. GM put wimpy 5/16″ pushrods that bend at the slightest stress like a decent .500 lift cam trying to open big block valves. roller cam kit comes with 3/8″ hardened pushrods which can withstand a BIG cam. 2.. 1992 Chevrolet C1500 454 Ss Tires | Goodyear Tires. CURRENT OFFERS. prev. Rebate. UP TO. $150 BACK †. On Select Sets of 4 Tires. With the Goodyear Credit Card by. This is the original 1979 350ci small-block. Not the picture of efficiency when new. When the truck was getting fed through the Quadrajet, my highway mileage was 10.5 to 11.0 miles per gallon. After installing the Sniper and running for a few weeks with the initial air/fuel settings as mentioned, I saw roughly 1 ½ to two-miles per gallon increase.

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