what is the cubic inch displacement of an ls3
This engine is 6.162 L, or 376 cubic inches, but is generally referred to as 6.2L. The stroke is common with the LS2 at 3.62 inches, but the extra displacement is found through the increase in bore to 4.06 inches. The increase in bore size further enhances the compatibility with heads from various heads from other LS series engines. The LS3 engine is constructed of aluminum alloy block and heads.