Quote:
Originally Posted by camcojb
yeah, you need a 4" or larger bore for the LS3/L92 heads. I think you can machine the block for valve clearance, but not the way to go.
Jody
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jody is right, you need a 6.0 other wise you need to do the necessary machine work to the block and even then your going to have a shrouded valve. This is what I have gathered about this swap.