Spring Seat Shim (Single Spring / .025″) Hardened Valve Spring Shims for 2RZ and 3RZ Street Performer Valve Springs. NOTE: Sold individually. Contact our Tech Support Line for further information at 928-575-2174. Note: Images are for...

Valve Keeper It is recommended to use hardened valve keepers every time you rebuild your engine. LC Engineering carries hardened valve keepers for all 3VZ valves using stock Toyota retainers or Street Performer retainers. A must for any high RPM...

Spring Seat Shim (.015″ / .030" / .060") Hardened Valve Spring Shims for Pro and Street Performer Valve Springs. When installing new valve springs, it is very crucial to get the springs all set up equally for proper valvetrain geometry and longevity...

Rocker Arm Shim (.030″ / .060") Have you ever checked your rocker arm alignment to see if it rides completely on the cam lobe? You are not alone; most people don't check it either!! As parts wear or even get replaced the rocker arm alignment can...