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The COMP Cams two-piece crank nut assembly provides a heavy-duty, heat-treated method to secure harmonic dampers and similar attachments on Chevrolet big block engines. The two-piece design accepts a large-diameter socket and allows engine rotation in either direction for servicing. It’s a professional-grade fastener intended to simplify crank turning and provide durable clamping.
COMP Cams Crank Nut For CB (Pro)
