Genuine GM Parts 12641691 - 6.2L LSA Crankshaft

GM factory replacement forged steel LSA 6.2L crankshaft. This crank uses the 8-Bolt LSA dedicated pattern and requires the LSA flywheel or flexplate that matches this bolt pattern. The common 6-Bolt LS flywheel or flexplate will NOT bolt-up to this crank. These cranks are factory balanced to match the stock LSA engine connecting rods and piston weights. It is manufactured with the standard LS "wet sump" style snout.