The compression is worth everthing. Milled to correct finish for mls head gasket sealing. “heads are thoroughly cleaned and inspected.
You can definitely go with too big. Compatible with lr4 / lm7 / lm4 engines. Pressure tested to ensure no cracks or leaks.
There's been stories going around that some of the gm ls castings have porosity problems and leak water in the oil around the top of the heads (head bolt area). Whether you’re a seasoned pro or a passionate diyer, these. If you head flows enough for your combo, going to a better flowing head will yield marginal results, sometimes even killer torque and power. Stock ls series 4.8l / 5.3l cylinder head.
Learn why chevy 706 heads ls are the best choice for your engine build. They offer great performance, flow, and reliability at a low cost, and are compatible with various. Full 3 angle valve job valve.