Crankshaft
Heavy Crank; Used w/ Early Heavy Pistons; Except Balance Shaft Engine; Forging # 480,640,865,5480,5865,8640,10055480,10105865,4088640; Forging # 255; has No balance hole drilled by # 1 Rod journal
Crankshaft
TBI; Heavy crankshaft used in all engines without balance shaft and with heavy piston and pin assemblies (745 grams). This crankshaft has two keyways.; Casting# 480, 640, 865, 5480, 5865, 8640, 10055480, 10105865, 14088640
Crankshaft
Lightweight crankshafts used in 1992-99 VIN code W engine, some 1995 VIN code Z engine and the 1996-99 VIN code X engine have light piston and pin assemblies (675 grams). This crankshaft has a single keyway.; Casting# 480, 685, 5480, 10055480, 10105865
Crankshaft
Lightweight Crank Used w/ Late Style Light Pistons; Includes Balance Shaft Engines; Forging # 480,685,5480,10055480,10105865; Forging # 255; has a balance hole drilled by # 1 Rod journal