Engine Blocks
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Race Director
Joined: Oct 2004
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Engine Blocks
Is there any difference between the L92 block and the LS3 block? I think I read somewhere that the new LS9 engine used in the ZR1 was actually based on the LS3 block, and with the notable exception of the C5R block, the LS3 is the strongest aluminum block that G.M. makes, including the LS7 block. Anyone know for sure? Thanks. 
