31-491-9 Xtreme Energy 206/212 Hydraulic Roller, Ford 221-302

Market Description: The COMP Cams Xtreme Energy camshaft delivers enhanced street performance for Ford Small Block engines, producing very strong torque and horsepower gains with a smooth idle and responsive throttle—ideal for mild performance upgrades and heavy vehicle applications. Engineered for excellent low- to mid-range power, it performs best with proven combinations such as the Edelbrock Performer intake manifold and a TCI Street Rodder or stock torque converter. Featuring full-size base circles, this camshaft works seamlessly with COMP Cams Evolution hydraulic roller tappets and eliminates the need for dog bones and lifter retainers—components never intended for pre-1985 applications. This camshaft supersedes part number 31-412-8, offering a dependable upgrade designed for improved drivability and consistent performance. Product Description - Extended: The COMP Cams Xtreme Energy series delivers enhanced street performance, offering strong midrange torque and horsepower gains with smooth idle and responsive throttle—ideal for mild performance upgrades. Features and Benefits: Eliminates the need for dog bones and lifter retainers, which were never intended for use in pre-1985 applications. Features and Benefits: Features full-size base circles, works seamlessly with our Comp Cams Evolution hydraulic roller tappets. Product Description - Long: Xtreme Energy 206/212 Hydraulic Roller, Ford 221-302 Product Description - Short: COMP Cams Ford Small Block Camshaft FS XE258 HR10 Product Description - Invoice: CAMSHAFT, FS XE258 HR10 Features and Benefits: Supersedes 31-412-8 AAIA Part Type Description: Engine Camshaft Product Description - Abbreviated: Camshaft