Magnum Timing Sets; Oldsmobile 260-455, '65-83
• Feature induction hardened cast iron camshaft gear and billet steel crank sprocket
• 3 keyway crank sprocket for 4-degree incremental adjustability, 4-degree maximum advance/retard
• Heavy-duty, heat-treated double row timing chain; comes complete with gears and chain
• Ideal for mild street performance applications
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