Callies Apex Series Forged Crankshaft - 4 in Stroke - Internal Balance - GM LT-Series ARP188-5401 100" longer than stock pushrods

100" longer than stock pushrods are required

NPT Port Size

Specifically designed to work in conjunction with Wilwood Remote Tandem Master Cylinders in manual or boosted system applications

Dual 5-1/8 in Carb Flange

XFI Fuel PressureFAST is the leading developer of electronic fuel injection systems

Callies Apex Series Forged Crankshaft - 4 in Stroke - Internal Balance - GM LT-Series ARP188-5401 100" longer than stock pushrodsProduct 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