BBC Roller Thrust Button .950in Length

The BBC Roller Thrust Button, measuring 0.950 inches in length, is a precision component engineered for big-block Chevrolet engines running roller cam profiles. This thrust button sits between the camshaft and the timing cover, managing axial load and preventing unwanted cam walk—a critical concern when pushing high-horsepower builds or extended rev limits. Whether you're building a street performance engine, competition drag setup, or high-RPM road course platform, the proper thrust button is non-negotiable for long-term reliability and consistent power delivery.

Manley's BBC Roller Thrust Button is manufactured to exacting tolerances using premium materials that withstand the constant pressure cycling inherent to aggressive cam profiles and elevated engine speeds. The 0.950-inch length is specifically dimensioned for BBC applications, ensuring proper clearance and load distribution across the cam gear interface without compromising timing accuracy. Roller cam designs generate different thrust loads than flat-tappet profiles, making a properly sized thrust button essential to prevent bearing preload loss and maintain precise valve timing throughout the engine's operational range.

Serious engine builders and high-output BBC enthusiasts rely on Manley components for their proven durability in extreme conditions. This thrust button is ideal for anyone upgrading to roller cam technology, installing performance cam profiles with aggressive lobe separation angles, or rebuilding an engine destined for consistent high-RPM operation. Installation requires basic machine work and should be completed during cam installation or engine assembly; correct fitment prevents costly failures from camshaft movement and ensures your engine maintains peak performance for years to come.