BBF Xtreme Energy Hyd. Cam - XE256H14

The COMP Cams BBF Xtreme Energy Hydraulic Camshaft (model 34-255-5) is a computer-controlled hydraulic flat tappet cam engineered for big block Ford engines demanding aggressive street and strip performance. This hydraulic cam eliminates the need for manual valve lash adjustment, delivering consistent lift across the RPM band while maintaining the cost efficiency of flat tappet design. The XE256H14 configuration produces 0.490-inch/0.495-inch lift across 256/268-degree duration at a 114-degree lobe separation angle, optimized for peak power delivery between 1000 and 5200 RPM.

The dual-duration profile—256 degrees on the intake, 268 on the exhaust—reflects the aerodynamic realities of big block Ford breathing. The asymmetrical lobe separation provides enhanced scavenging and cylinder filling without pushing into pure race territory where fuel consumption and cold-start stability suffer. Computer-controlled hydraulic actuation automatically compensates for thermal expansion, eliminating the guesswork of manual adjustment and ensuring reliable operation across varying ambient and engine temperatures. The 114-degree lobe separation angle balances overlap aggression with streetable idle quality and drivability.

This camshaft is purpose-built for big block Ford engine builders targeting carbureted or EFI street performance, where consistent hydraulic action and proven flat tappet reliability matter more than the marginal gains of roller cam complexity. The XE256H14 excels in restored muscle cars, truck builds, and weekend warrior applications where moderate RPM limits (5200 max) align with stock block tolerances. Installation requires compatibility with existing hydraulic lifter valvetrain components; verify lifter bore specifications before ordering.