COMP Cams Camshaft CBVI XM284HR-12

COMP Cams has built a reputation for making serious performance valvetrain parts, and this Xtreme Marine camshaft is no exception. It’s a hydraulic roller camshaft designed specifically for Chevrolet Big Block GEN VI engines, like those found in 1996-2000 C/K trucks and Express vans. If you're looking to get more out of your big block, whether it's for a jet boat with an A impeller or just for some mild performance upgrades on the street, this cam can make a notable difference.

This camshaft features a 230-degree intake duration and 236-degree exhaust duration at .050 lift, with a 112-degree lobe separation angle. These specs are chosen to provide a good balance of power and drivability for its intended applications. Being a hydraulic roller design, it offers reduced friction and wear compared to flat tappet cams, allowing for more aggressive lobe profiles and better performance potential. It’s a solid option for those looking to wake up their big block without going to an extreme race setup.

When installing a camshaft like this, it's important to follow the manufacturer's recommended break-in procedure to ensure proper seating of the lobes and lifters. You'll also want to make sure your valve springs are up to the task of handling the increased lift and duration. This camshaft is not CARB approved and cannot be shipped to California.