Callies Apex 8 Counterweight Forged Crankshaft, 4.00" Stroke, 58 Tooth Billet Reluctor (CAAPO31V-AS-58B)

APEX LS 4.000 STROKE CRANK

Suit GM LS Series

Part Number: CAAPO31V-AS-58B

Callies understand that noteveryone has the need or budget for a Magnum or billet crankshaft, but still may wanta product with more to offer than the Compstar line. This middle-ground has needed an option for several years, so Callies went to work for a solution. This has culminated in the creation of the Apex Series of crankshaft by Callies. Apex crankshafts are made on the same forgings thatwe use to make our Magnum Series, but are machined by the supplier that makes the Compstar line. Like Compstar, all Apex crankshafts are finish sized and fully inspected in-house. This results in the best bang-for-your-buck crankshaft on the market.
Madeon Callies proprietary Magnum forging
Ultra-pure, premium 4340 material
Machined by our vetted and reliable Compstar supplier
Nitrided for optimal hardness and wear resistance
Every crankshaft is finished and inspected in-house at Callies
Limited strokeand pin size combinations