Like most ideas, this one started out with a simple statement: "Hey, let's test a few LS heads." From that innocent phrase came what would become the granddaddy of all LS cylinder head tests. Sure, we ...
Fresh Air: How much better are RHS’ LS7 cylinder heads than the stock LS7 castings? We bolt them to a hot 451ci LSX to find out There’s no official metric that keeps track of this sort of thing, but ...
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