BBC Hyd. Roller Cam

The BBC Hyd. Roller Cam by Howards Racing Components is a precision-engineered hydraulic roller camshaft designed for serious big-block Chevrolet engine builds. If you're upgrading your BBC platform—whether for street performance, strip duty, or high-RPM application—this roller cam delivers the valve actuation geometry needed to unlock cylinder head potential and maximize power output. Hydraulic roller cams have become the industry standard for reliability, reduced valvetrain noise, and predictable performance across a wide operating range.

This BBC hydraulic roller cam features a roller lifter design that eliminates friction losses inherent in flat-tappet cams, translating to improved efficiency and lower wear on your valvetrain components. The profile is engineered to control valve overlap, duration, and lift characteristics while the roller follower design ensures consistent lobe contact and reduces side loading on cam lobes and lifter bores. Howards Racing Components manufactures this unit to strict tolerances, using hardened steel with a specialized lobe coating to withstand high-load, high-RPM conditions. The 24.25-inch length fits standard BBC core dimensions, and the hydraulic design automatically compensates for thermal expansion—critical when push-rod clearance becomes tight under boost or extended throttle.

This camshaft is ideal for BBC builders targeting elevated compression ratios, cylinder head porting, or forced-induction platforms where valvetrain stability matters. You'll benefit most if you're pairing it with a quality BBC intake manifold, roller rocker arms, and a solid ignition tune to exploit the full envelope. Installation requires compatible roller lifters and attention to cam bearing clearances; verify your block and cylinder head configuration support roller equipment before ordering. This unit works across naturally aspirated and boosted applications, making it a versatile choice for street machines, race engines, and everything in between.