This Eagle rotating assembly for Chevy LS1 is a matched 8-cylinder package built around a 4.000" crank with a 58-tooth reluctor. It pairs 6.125" I-beam rods with 3.905" pistons as listed, supplied as a complete rotating group to simplify LS1 engine rebuilds or replacements and to ensure internal parts are sized and matched for proper operation.

Eagle Chevy LS1 4.000in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.905in Pistons Rotating Assembly