BOP= Burick, Olds, Ponchiac. They're different than Chevy. There's also a few universal/dual pattern units out there, but don't know if they're available aftermarket. The pattern you buy is dependent upon the engine and/or future engine plans.
My current motor is a 305, but I plan to swap a to a 350, but not more than 300 HP. Thanks for the responses.
Is there a way to Identify which one I get once its delivered? Or to make sure its at least Chevy small block comparable?
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