Bb Chry Cam 305H (Hyd) Single Bolt

The COMP CAMS Bb Chry Cam 305H (Hyd) Single Bolt camshaft is a hydraulic flat tappet design engineered for Mopar B and RB-series engine platforms. This camshaft delivers 0.525-inch lift on both intake and exhaust with a 305-degree duration rating, optimized for operating ranges between 3500 and 6500 RPM. The 110-degree lobe separation angle (LSA) provides the overlap and timing geometry necessary for efficient scavenging and cylinder filling across its intended power band.

Hydraulic flat tappet design means this camshaft relies on engine oil pressure to maintain zero valve lash through dedicated hydraulic lifters—a critical consideration for street and mild performance applications where noise reduction and valve train longevity matter. The moderate 0.525-inch lift and 305-degree duration profile positions this cam for peak power delivery in the mid-range, making it suitable for cruiser builds, muscle car restorations, and applications prioritizing driveability over extreme high-RPM performance. The single bolt design ensures compatibility with standard Mopar B/RB-series cam timing gear installations.

This camshaft is ideal for enthusiasts rebuilding or upgrading classic Chrysler, Dodge, or Plymouth muscle cars and trucks. Whether performing a full engine refresh, installing a crate engine, or tuning an existing B or RB block, the 305H provides measurable power gains over stock camshaft profiles while maintaining stock-compatible valve train hardware and oil supply systems. Proper installation requires attention to cam timing, lifter preload, and rocker arm geometry to achieve the designed performance envelope and component longevity.