Adjustable Double Roller Timing Set for Oldsmobile 400-455

• Include induction hardened steel billet gears for bullet proof durability

• Feature infinitely adjustable camshaft sprocket, 6-degree maximum advance/retard

• 3 keyway crank sprocket for additional 4-degree incremental adjustability

• Pre-stretched, heat-treated double roller chain with heavy-duty large pin design; chain available separately

• Ideal for all street performance and race applications