So, Chevy's engineering team went about designing an experimental 302 small block with hemispherical combustion chambers, revised pistons, hemi camshaft, magnesium valve covers, and a high-flow ...
Starting with materials like a four-bolt-main cast iron block, forged steel crankshaft, nodular iron camshaft, aluminum HEMI cylinder heads, and forged pistons, the 6.2L HEMI features a 9.5:1 ...