The Chevy 5.3 liter Gen III engine was installed in thousands of pickups and vans from 1999 through 2007. The majority of them were the RPO LM7 / VIN T engine with the cast iron block, but there were ...
Having tested endless aftermarket and ported stock LS cylinder heads for our sister titleHot Rod, it seemed odd that the stock stuff was never included. A test of the popular factory cylinder heads ...
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