Adjustable Timing. Positive Locking. Zero Slip.

Most adjustable cam gears rely solely on friction between the center section and outer gear. Under extreme RPM, vibration, or repeated adjustments, there is always the possibility of movement.

The PHR Billet Adjustable Locking Cam Gear eliminates that risk.

Featuring a unique positive-lock adjustment system, the PHR cam gear is the only cam gear for the 2JZ and 1JZ platform that can mechanically lock the cam gear position, eliminating the possibility of cam timing slip. Whether you're chasing every last horsepower on a race engine or simply want complete confidence in your valve timing, the PHR locking system keeps your cam timing exactly where you set it.