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Old 12-09-2025, 05:50 PM
Tom Pugh Tom Pugh is offline
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Join Date: Jan 2024
Posts: 96
Default cost for Butler 455 build?

I'm considering taking my '73 455 to Butler for a rebuild. It is stock bottom end with a roller cam and rockers, Edelbrock rpm, intake, Avenger 770 carb and larger valves in the 4X heads. I would like to rebuild it with a forged rods and pistons, keep the stock crank and likely use a set of aluminum heads. The is a street only build, so something in the 450-500hp range with the focus on good off idle torque and midrange is my goal. This is going into a '67 GTO, backed by a Turbo 400 and 12 bolt with 3.31 gears Any guys here have a feel for Butler's pricing structure and leadtimes? Suggestions?