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Corvette LS3 Engine Block

While a larger (4.06-inch) bore may be the LS3 block's most notable change, there are other, more subtle modifications. Refinements to the block casting, for example, yielded a 20-percent increase in strength as compared with the LS2.
Corvette LS3 Engine - Worthy Successor

 While a larger (4.06-inch) bore may be the LS3 block's most notable change, there are other, more subtle modifications. Refinements to the block casting, for example, yielded a 20-percent increase in strength as compared with the LS2.  View Related Article

 

 

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