COMP CAMS Keyway Adjustable Billet Timing Sets; Small Block Ford '65-'88 PN: 7138Induction hardened and precision machined steel billet gears for bullet proof durability• Feature 9 keyway crank sprocket for 2-degree incremental adjustability, 8-degree maximum advance/retard• Pre-stretched, heat-treated double roller timing chain with heavy-duty large pin design• Includes Torrington roller thrust bearing for reduced friction• Ideal for all street performance and race applications.
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