RCM Adjustable Vernier Pulleys are a valuable asset to any high performance engine allowing adjustment for exact valve timing to ensure the combustion process is as efficient as possible.

Given the important role of the camshaft pulleys, strength, durability, accuracy and quality are all...

RCM Double Valve Spring Set.  Suitable for use on V5+ Cylinder Heads, with the correct spring seats and retainers.

Our valve springs are designed and manufactured to reduce valvetrain harmonics, increase durability and provide an increase in performance.

Manufactured from...

RCM Uprated Inlet Valve, for V5+ Heads

RCM Uprated Exhaust Valve set, for V5+ Heads

RCM Billet Bucket shims.  Each shim is pre ground,  checked and measured, before being individually marked with size information.

Price is per shim, you will need to email thickness' required after placing your order for the quantity you need.

Exhaust Valve Stem Oil Seal

Inlet Valve Stem Oil Seal

Set of 32 Genuine Subaru valve collets, these are required when fitting valves.