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cast iron heads
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  1. Engine, Drivetrain
    I have the chance to purchase a 383 that's +.060 over with a cleaned up 383 forged crank. I was wondering what kind of numbers have folks seen with some ported 906 or 452 heads with this kind of set up. I have my early 71' "230" casting block +.040 over and ready for some serious stuff, and...
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