Bolt & Divider Kit - for 1621 BBM B/RB

The Bolt & Divider Kit for 1621 BBM B/RB from COMP CAMS is an essential component for serious engine builders and performance mechanics working with Chrysler B and RB displacement platforms. This fastener and divider assembly kit addresses a critical need in high-performance small-block and big-block combinations where precision rocker geometry and valve train integrity are paramount. Whether you're assembling a vintage muscle car engine, rebuilding a performance street machine, or constructing a dedicated race platform, this kit ensures proper alignment and secure retention of core valve train components.

COMP CAMS engineered this bolt and divider kit to maintain consistent rocker arm positioning and prevent lateral movement during high-RPM operation. The divider component isolates valve actuation zones and reduces cross-firing interference between adjacent cylinder banks, a common issue in aggressive cam profiles and forced-induction applications. Manufactured to exacting tolerances, the kit's fastener design accommodates the specific bolt patterns and thread specifications of the 1621 BBM cylinder head configuration, ensuring repeatable installation and long-term reliability under sustained engine load. The compact assembly (2.8 x 2 x 4 inches, weighing 1.7 pounds) integrates seamlessly into tight underhood environments without compromising accessibility.

This kit is indispensable for engine shops, performance builders, and hands-on enthusiasts who demand factory-grade engineering in their valve train assemblies. Installation requires standard mechanical competency and basic hand tools; the kit's design philosophy prioritizes straightforward fitment while delivering the precision finish necessary for competitive and street-driven applications alike. Compatibility is restricted to 1621 BBM B/RB platforms, so verify your cylinder head casting number before ordering to ensure proper fit and function.