Callies Compstar EJ20 Billet Crank 4340 – 79 mm

Designed for Maximum Effort engines, all SS (Sport Series) crankshafts are finished with the same care and detail as the entire line of Compstar crankshafts. All SS cranks are sold balanced, ready for assembly. SS crankshafts by Compstar feature the best metallurgy and heat treatment on the market today.

Standard Features:

• Average weight 18 lbs
• All rod journals drilled for lightening
• Material certified by Callies in house Metallurgical lab
• Ultra-Case nitriding performed and certified in house
• All journal diameters are held to .0005″ tolerance
• Aeroshed finishing optional

For engine: EJ20/25