Callies Apex 4340 Forged Steel Crankshaft 4.000" Stroke GM LT Wet Sump

Callies LT Apex 4340 Forged Steel Crank 4.000 Stroke

Crankshafts are manufactured from 4340 forged steel and utilize the same forgings as the Magnum series, yet are machined by the same supplier that produces the Compstar line for improved affordability. Each crankshaft is nitrided for optimal hardness and wear resistance prior to being finished and inspected in-house at Callies.

• GM LT Wet Sump
• Stroke: 4.000"
• Main Journal: 2.559"
• Rod Journal: 2.100"
• Rod Length: 6.125"
• Part Number: 5TO-31V-AS

Note: 2.100 Rod Pin, 58-Tooth Reluctor Wheel