Xtreme Hydraulic Cam - SBM XE285HL

The Xtreme Hydraulic Cam - SBM XE285HL from COMP CAMS is a purpose-built hydraulic flat tappet camshaft engineered for small block Mopar engines seeking aggressive street and strip performance. This camshaft delivers the signature lift and duration characteristics needed to unlock additional horsepower and torque across a broad RPM band, making it ideal for enthusiasts building or upgrading classic Mopar muscle cars, race vehicles, or high-output street engines. Hydraulic flat tappet designs offer proven reliability and straightforward installation without requiring complex valve train modifications.

This camshaft features 0.545 inches of lift on both intake and exhaust sides, with a 285-degree intake duration and 297-degree exhaust duration, optimized around a 110-degree lobe separation angle. The valve event window spans from 2500 to 6500 RPM, positioning peak torque in the mid-to-high range where street drivers and racers demand responsive acceleration. Hydraulic lifters automatically maintain zero lash, eliminating the need for manual adjustment and reducing wear on the cam lobe and lifter surfaces—a critical advantage in extended driving sessions or competitive use. The flat tappet design combines durability with cost-effective performance enhancement over OEM profiles.

Small block Mopar engine builders—whether restoring a 1960s–1970s Dodge, Plymouth, or Chrysler or assembling a modern performance crate engine—will find the Xtreme Hydraulic Cam compatible with factory or aftermarket small block Mopar heads and block combinations. Installation requires standard camshaft removal and installation procedures; ensure compatible lifters, pushrods, and valvetrain geometry are confirmed before assembly. Proper break-in procedures and quality engine oil are essential to maximize cam lobe life and overall engine longevity.