COMP Cams 2136 Magnum Double Roller Timing Set

Magnum Double Row Timing Set for OE Roller Chevrolet V6 and 305-350 Small Block 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