COMP Cams 3129CPG Hi-Tech Roller Race Timing Set for 77+ 183-252 Buick

Description

Hi-Tech Roller Race Timing Set for ’77+ 183-252 Buick, Olds, Pontiac V6 Cast Iron Camshaft Gear and induction hardened billet Steel crank sprocket. Feature 3 keyway crank sprocket for 4-degree incremental adjustability, 4-degree maximum advance/retard. Pre-stretched, heat-treated double Roller chain with heavy-duty large pin design