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Forged 4340 steel nontwist forging. Muli-stage heat treat process. 100% x-rayed , magnafluxed and sonic tested. Stree relieved and shot peeped 125 radius on rod and main journals for increased strength.

Precision ground and micro-polished journals. Indexed for correct stroke. Nitrided journals for superior wear resistance. 6-Bolt Flange.