What are the main differences between GM's LS2 and LS3 engines?

The GM LS2 and LS3 are both small-block V8s that featured in the base C6 Corvette, but several crucial internal differences ...
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How an Outdated Pushrod Engine Became GM’s Legendary LS V8

GM’s Chevrolet LS engines redefined the pushrod V8 to give us one of the most dominant performance platforms of the modern era. What we refer to today as the LS family of engines usually refers to the ...