75mm

Part Number: 039ADD750

Description: Dual Thrust Billet Crankshaft; 8 Bolt Flange

Stroke: 75mm

Weight: 21lbs

Main Journal Diameter: 60mm

Rod Pin Diameter: 52mm

79mm

Part Number: 039ADD790

Description: Dual Thrust Billet Crankshaft; 8 Bolt Flange

Stroke: 79mm

Weight: 21lbs

Rod Pin Diameter: 52mm

Main Journal Diameter: 60mm

83mm

Part Number: 039ADD830

Description: Dual Thrust Billet Crankshaft; 8 Bolt Flange

Stroke: 83mm

Main Journal Diameter: 60mm

Rod Pin Diameter: 52mm

Weight: 21lbs

Fitment: 08-14 Subaru STI Hatchback & Sedan

Details:

K1 Technologies crankshafts offer world-class performance at an affordable price. Our crankshafts are made from 4340 forged steel and core hardened to reduce stress and optimize tensile strength. Each crank is designed with counterweights placed for optimal load reduction and ease of balancing.

*FEATURES* * *4340 Forged Steel* - Toughness and resistance to impact * *Core hardened using nitride hardening process* - Less chance of running deformation * *Magnetic Particle Inspection* - Ability to see flaws that may cause s stress riser * *Straight oiling to journals* - Alleviates issues with rod bearing failures * *Stress relieved* - No bending or distortion in the engine. * *Exceptional journal finish* - Longer bearing life * *Wide Pin-End Widths* - Supports wrist pin to minimize failures

* Reluctor wheel included (where applicable) * Concentric journal machining * Cam-cut for improved performance * Gun-drilled rod and main journals * Exceptional journal finish * Crank keyways cut to match OEM locations