Anybody build a 427 with a 454 block & 396 crank? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rat454ci · 07-30-2019, 03:00 PM

I ran a 3.75" steel crank and .125" over bore in a 454 4 bolt block. I still have the crank rods and pistons. The combo made 451ci. aluminum rods and 12.5:1 forged pistons with open chamber heads and a solid roller. It pushed my 69 Chevelle in the low 10s. The thing would turn 8500 RPMs. I sold the car and kept the engine. I took the rotating assembly out and went with a 4.25 stroke crank. I don't think I will ever do anything with the 451 parts if interested.

07-30-2019, 03:00 PM	#6
rat454ci Registered User Join Date: Feb 2016 Location: Madison MS Posts: 8	Re: Anybody build a 427 with a 454 block & 396 crank? I ran a 3.75" steel crank and .125" over bore in a 454 4 bolt block. I still have the crank rods and pistons. The combo made 451ci. aluminum rods and 12.5:1 forged pistons with open chamber heads and a solid roller. It pushed my 69 Chevelle in the low 10s. The thing would turn 8500 RPMs. I sold the car and kept the engine. I took the rotating assembly out and went with a 4.25 stroke crank. I don't think I will ever do anything with the 451 parts if interested. __________________ 68 stepside, BB 468, turbo 350, stock suspension, full interior w cage, plate nitrous, 4.56 gear, 29-10.5 tire, best 1/8th 6.78. 60ft 1.50. 73 GMC Jimmy 350/350



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