2013年1月6日 · Biggest thing is to drop RPM typically big block Vehicles will have a 410 axle I swapped my 410 for a 342 and have a 454 with a turbo 400 gets about 12 to 12 and a half miles per gallon with a 650 Edelbrock obviously bigger carb less fuel mileage everyone says you'll choke it out with a small carb to an extent you will but still very drivable but better fuel mileage …

2006年3月20日 · I have a 95 Chevy 3/4 ton 454 ext. cab. The specs on it put it at a wimpy 260 horse. I figure since it's only getting 10mpg, I might as well bump it on up to the days when 454's were getting 450 horse. What would it take to get some serious performance out of this thing... on a budget / shadetree mechanic type setup?

2006年7月13日 · TBI 454 255hp @ 4000rpm 405 lb/ft torque @ 2400 rpm 454SS(91-93) and 94-95 3/4 and 1 ton trucks used 90 lb/hr injectors at 28-32 psi (high pressure system) Vortec L29 454 290 hp 410 lb/ft torque The Vortec 454 uses 8 24 lb/hr fuel injectors that are sequentially fired. Both engines can benefit a LOT from higher flow cylinder heads and cams.

2009年8月22日 · I have a 1993 GMC K3500 dually with a 454 and I also have a 1994 GMC K2500 suburban with a 454. I was just pricing injectors for my suburban (bored as mine are fine at the moment) when I noticed that the stock part numbers for the '93 and '94 are different. Under the heading for each year, they lumped both 2500 and 3500 as the same part number.

And the Chevy uses .842 lifters, which limit lobe designs that can take advantage of the better heads if using flat tappets. The Mopar is quite tall. It uses rods some 5/8 inch longer than Chevy rods, stock. And has ample room for even longer rods. The stroke in the Mopar, stock, is a full quarter inch shorter than the Chevy.

2012年6月16日 · the 454 is a good motor i owned 2 both were carb one 4x4 one 4x2 crew cab duallys both were 86's 4x4 one got 5-8mpg 2wd got 6-10mpg both had 4:11 gears with no overdrive... 2006 Chevy Silverado RCSB 4.3/4l60e 4-6 Drop.

2012年3月22日 · Alright guys, so I own a 1990 C1500 Silverado with a 350. I plan on swapping the factory 350 with a rebuilt 454 from a 1 ton of the same era. I still want the TBI. I've kinda got a basic idea of what I'm getting into. All I can think of that will need replacing right away are the ECM, harness, fuel pump, and radiator.

2011年3月19日 · A forum community dedicated to GMC and Chevy full size owners and enthusiasts. Come join the discussion about Silverados, Sierras, and other full size trucks performance, modifications, suspension, lift kits, tires, maintenance, and more!

2013年8月24日 · I just bought a non running 1998 Chevy Crew Cab 4x4 with a 454. I bought it as a non running truck that was driven into storage last winter and would not start this spring. It has 60psi fuel pressure, and will start and run on a shot of …

2023年8月25日 · This is a true one owner summit white 1992 454 SS pick up truck and it’s in immaculate condition. The truck has 81k original miles and comes with window stick, owners manual, loan information and ever piece of documentation it had from factory. There has been some cosmetic upgrades such as front...