This Eagle rotating assembly is a complete matched kit for Chevy LS1 applications, built around a 3.622" crank with a 58-tooth reluctor. It includes 6.125" I-beam rods and 3.905" pistons listed in the description, offered as a single rotating package to support LS1 engine rebuilding and provide correct internal component coordination.
Eagle Chevy LS1 3.622in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.905in Pistons Rotating Assembly