Lunati Signature Series Crankshaft, 24X [Stroke 4.425 | Main Journal OD 2.559 | Rod Journal OD 2.200 | Rod Length 6.300] (GM LS1, LS6 & LS2) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS