plans were originally to clone ss the car as i have a 396 on a stand in the shop, also picked up a muncie m21 from a 69 chevelle, but now today aquired a 427 that appears to be a 425hp head castings are 3964291 and could not see the block casting but got id# appears to be T0320LD i can not reference this id so when i pick it up i will look closer
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