340 pistons in a 360

RustyRatRod said

I guess. I don't know the exact recipe.

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Was a 1972,73 article,Hot Rod,I.I.R.C.... Hoover dropped cast 340 slugs, milled the difference. With today's labor cost's,gains would kill you.If you have access to a machine shop & a balancer,this could be feasable.