Re: Big Block Motor Mount Question...?
i'll take the 1st question.... i used small block mounts on the 454 in my blazer. i'm not sure what hole you're talking about enlarging, i just bolted them on then bolted them to the towers.
not sure about the rest of your questions...sorry.
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1970 C20 now a K30
1986 3+3 Dually
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