Hot Cams Racing Camshaft Single Cam Stage 1 Yamaha Raptor 660 Elevate your vehicle's performance effortlessly with the Hot Cams Stage 1 Racing Camshaft. Engineered for high performance with minimal complications, it installs easily without requiring a core. It functions seamlessly with stock valve springs and rockers for the majority of configurations. With model-specific adjustable cam sprockets, custom tuning is streamlined for precision. It enhances intake and combustion processes, providing a more responsive throttle and discernable power improvements over standard setups. Features: High performance racing camshaft No core required Designed to be use with stock valve springs and rockers on most applications (unless noted) Adjustable cam sprockets supplied (model specific) Improved throttle response technology Improved intake charge and combustion cycle over stock Specifications: Exhaust Cam Lobe Center: 106 Exhaust Cam Lobe Duration at 1mm: 246 Exhaust Cam Lobe Lift: 9.400mm Exhaust Cam Valve Lash: 0.250mm Intake Cam Lobe Center: 106 Intake Cam Lobe Lift: 8.500mm Intake Cam Valve Lash: 0.200mm Intake Lobe Duration at 1mm: 254