COMP Cams Magnum Double Row Timing Set Pon

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 Featuring an induction hardened cast iron cam gear with a billet crank gear, this Magnum timing set has a heavy-duty, heat-treated double row chain for mild/street performance '55-'81 Pontiac 326-455.