Callies Apex Series Forged Crankshaft - 4 in Stroke - Internal Balance - GM LT-Series MAC-XC-1.75 1 or 2-Piece Seal

1 or 2-Piece Seal

Switch Upgrade Only

Ball and Socket-Style Collectors

mile after mile

Callies Apex Series Forged Crankshaft - 4 in Stroke - Internal Balance - GM LT-Series MAC-XC-1.75 1 or 2-Piece SealProduct Description: Crankshaft Apex Series 4. 000 in Stroke Internal Balance 58X Reluctor Forged Steel 1 Piece Seal GM LT Series Callies Performance Products began manufacturing high performance crankshafts in 1989. With many years of engineering and employee experience, Callies has grown to be the industry leader for innovative product design. Callies Performance Products takes pride in staying ahead of the competition with the latest high tech