Quote:
Originally Posted by Westen86
I work with a Chevy guy that says the 4.8, 5.3 and 6.0 are all the exact same block. Just buy a 4.8, and put 6.0 heads on it. Or whatever. But dont start with a 6.0.
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Besides being different bore sizes this would drop your compression....
Also the 6.0 has a built in casting that's different to support the bore size. Not all blocks are the same. Let alone the differences between a truck block, aluminum block, and then other differences between certain versions.