Valve Train & Camshafts

RCM Subaru Adjustable Vernier Camshaft Pulleys RCM Subaru Adjustable Vernier Camshaft Pulleys are precision-engineered for high-performance and competition Subaru engines, delivering accurate cam timing adjustment with uncompromising strength and reliability. Manufactured with an anodised black alloy outer and a stainless steel inner hub, these pulleys are designed to withstand the demands of motorsport use while…

RCM Subaru Adjustable Vernier Camshaft Pulleys RCM Subaru Adjustable Vernier Camshaft Pulleys are precision-engineered for high-performance and competition Subaru engines, delivering accurate cam timing adjustment with uncompromising strength and reliability. Manufactured with an anodised black alloy outer and a stainless steel inner hub, these pulleys are designed to withstand the demands of motorsport use while…

RCM Subaru Adjustable Vernier Camshaft Pulleys RCM Subaru Adjustable Vernier Camshaft Pulleys are precision-engineered for high-performance and competition Subaru engines, delivering accurate cam timing adjustment with uncompromising strength and reliability. Manufactured with an anodised red alloy outer and a stainless steel inner hub, these pulleys are designed to withstand the demands of motorsport use while…

RCM Camshaft Kits have been designed and developed in house, to ensure that they deliver the maximum power possible over a wide power band. Each Cam is precision ground and polished from a new blank to the same exacting standards and tolerances every time, ensuring you have the same quality Cams as you would see…

RCM Camshaft Kits have been designed and developed in house, to ensure that they deliver the maximum power possible over a wide power band. Each Cam is precision ground and polished from a new blank to the same exacting standards and tolerances every time, ensuring you have the same quality Cams as you would see…

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 chrome silicon vanadium, they are then heat treated, stress relieved and finally shot peened to…

Developed in conjunction with the WRC engine valves, Roger Clark Motorsport have developed their own range of high quality uprated valve springs. These springs offer an increased spring rate over the standard genuine spring, helping to eliminate valve bounce at high engine revs. These springs have: Unfitted length of 54mm Coil diameter of 3.8mm Weight…

RCM Camshaft Kits have been designed and developed in house, to ensure that they deliver the maximum power possible over a wide power band. Each Cam is precision ground and polished from a new blank to the same exacting standards and tolerances every time, ensuring you have the same quality Cams as you would see…

RCM nitrided spring seat spacers for V5+ heads.

RCM nitrided spring seat spacers for V3/4 heads only to be used in conjunction with the RCM double valve spring kit RCM906.