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Testing GM L92 And LS7 Cylinder Heads Piston To Valve Clearance

Testing GM L92 And LS7 Cylinder Heads Piston To Valve Clearance

Testing The New GM L92 Cylinder Heads - 550 hp for Under $4,900
After removing the stock 6.0L heads, we took the time to check for valve-to-piston clearance to make sure we wouldn't bend a bunch of valves with more lift from the Comp cam. We needn't have worried, since we found a ton of room. This is partly due to the Gen III engine's taller 15-degree valve angle. We're used to working with 23-degree heads. View Related Article
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