K1 Forged And Billet Connecting Rod 130.5mm
K1 offers two different types of connecting rods made from Forged 4340 Steel and Billet 4340 Steel.
Proprietary bolts produced by ARP to K1 specification have asymmetrical threads to equally load each thread when under pressure.
Connecting rods are shot peened for improved fatigue life and are finished in the USA using our state of the art Sunnen hones.
Housing bore tolerances of +/- .
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