Xtreme Energy 236/242 Hydraulic Roller Cam

The Comp Cams Xtreme Energy 236/242 Hydraulic Roller Cam (Grind Number: XR288HR) is engineered for performance enthusiasts seeking improved power for street/strip applications. Designed specifically for OE roller Small Block Chevrolet engines (305-350 c.i., 1987-1998), this camshaft utilizes a hydraulic roller design for optimal performance and durability. This camshaft boasts a 2,500-6,000 RPM operating range, with 236 degrees of intake duration and 242 degrees of exhaust duration measured at 0.050 inch lift. It features a 0.520-inch intake valve lift and a 0.540-inch exhaust valve lift when used with 1.5 ratio rockers. The advertised duration is 288 degrees for the intake and 294 degrees for the exhaust, with a lobe separation angle of 110 degrees. For optimal performance and to prevent potential valve float, this camshaft requires the use of upgraded valve springs. It is not designed to be a direct drop-in and is intended for use in vehicles with 9:1+ compression ratios, performance intake systems, headers, and appropriate gearing. A 3000+ stall torque converter is recommended for automatic transmissions, and a rough idle is expected due to the aggressive nature of the cam profile. Comp Cams has been a leader in valve train components for over 35 years, committed to producing the highest-performing products and advancing technological development within the industry. This Xtreme Energy camshaft reflects that dedication to performance and quality.