3/8in Hi-Tech Poly Lock

The 3/8in Hi-Tech Poly Lock by COMP CAMS is a precision-engineered valve train component designed for high-performance engine builds and competition applications. This lock collar secures pushrod geometry in aggressive cam profiles where standard retention methods may fail under extreme valve train loads. Law enforcement and military mechanics working with engine repair, rebuilds, and performance upgrades will recognize this as essential hardware for maintaining pushrod position and preventing catastrophic valve train separation during sustained operation.

Manufactured from hi-tech polymer material, the 3/8in lock delivers superior load-bearing characteristics while reducing mass compared to traditional steel collars—a critical advantage in racing and tactical vehicle platforms where every gram affects acceleration and fuel efficiency. The poly construction resists corrosion and galling, eliminating the seizing issues common to metal-on-metal fastening systems. The 3/8-inch bore diameter accommodates standard pushrod sizing, and the lock's geometry provides positive engagement without marring precision-finished components. This design allows consistent clamping force across repeated thermal cycles, maintaining critical pushrod length specifications essential for valve timing accuracy.

Technicians rebuilding high-output V-block engines, particularly those running solid roller cams or aggressive hydraulic profiles, will find this lock indispensable for preventing pushrod drop-out during cold starts or high-RPM operation. Installation requires no special tooling—hand-torque to manufacturer specifications ensures proper retention without risking component damage. Compatibility spans most small-block and big-block applications using 3/8-inch pushrod bores. For field maintenance teams, law enforcement motor pools, and competition engine shops, the 3/8in Hi-Tech Poly Lock provides the reliability needed when valve train integrity is non-negotiable.