BBM Roller Rocker Arms 1.5 Ratio Shaft Mount

The BBM Roller Rocker Arms 1.5 Ratio Shaft Mount from PROFORM delivers enhanced valve actuation for Mopar B and RB-series engines seeking reliable performance upgrades. These shaft-mount rocker arms are engineered for enthusiasts and rebuilders who demand precision valve control without the complexity of stud-mount conversions. The 1.5:1 ratio provides a balanced mechanical advantage, improving valve lift geometry while maintaining stock-compatible architecture for straightforward installation on classic Mopar powerplants.

Built from aluminum and finished in blue anodize, this rocker arm kit combines lightweight construction with corrosion resistance and visual appeal. The roller tip design minimizes friction at the pushrod interface, reducing wear on both the rocker arm and valve stem while improving valvetrain efficiency. Shaft-mount configuration provides superior stability compared to stud mounts, critical for higher-RPM applications and long-term durability. The 1.5 ratio geometry reduces valve lift slightly from peak cam lift, making these arms ideal for street and mild performance builds where reliability and smooth operation outweigh maximum flow capacity.

Ideal for B-block and RB-block engine builders, vintage muscle car restorers, and Mopar enthusiasts upgrading original equipment, this rocker arm kit transforms valvetrain performance with minimal modification. Installation requires standard engine building practices and compatibility with existing shaft-mount pedestals; verify your engine block configuration before ordering. The roller tip and shaft-mount design make these rocker arms suitable for street cruisers, show cars, and mild race applications where dependable valve actuation is paramount.