Factory Small Block Heads

toolmanmike said

I had 2 different heads on my 273 as well. Also one of the rod bearings was dated 71 where the rest were 66. Something came loose along the way and was fixed.

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What would happen if a guy put a X head on left side, and a 318 smog head on the right side, a custom ground cam that one bank had stock 318 specs, and the other bank had .470 lift/230 duration, left side header, right side 318 manifold... you get the picture.... lol little off topic but... :D