Xtreme Energy XE256H Hydraulic Flat Tappet Camshaft

The Comp Cams Xtreme Energy XE256H camshaft is engineered to deliver increased responsiveness and a broader powerband for street carbureted applications. Its advanced lobe profiles provide more area under the lift curve, facilitating a performance upgrade in duration. This hydraulic flat tappet camshaft offers a lift of .447 inches on the intake and .455 inches on the exhaust, with advertised durations of 256° for the intake and 268° for the exhaust. The optimal RPM operating range for this cam is between 1000 and 5200 RPM, providing strong torque through the low and mid-range with a good idle. For optimal performance, it is recommended to pair this camshaft with COMP Cams roller rockers and matched valve springs. Additionally, other performance parts such as an upgraded intake manifold and headers are required to achieve the best results. Important considerations for installation include the necessity of break-in oil and oil additives, as flat tappet camshafts require a more extensive break-in process.