Valve Train & Camshafts

RCM alloy/steel vernier camshaft pulley set for adjusting exhaust cam timing on 2001-2007 Subaru STI (V7-V9) engines. Anodised black alloy outer with a stainless steel inner hub, laser-etched timing markings and a one-piece belt guide. Supplied with ARP high-strength bolts.

RCM alloy/steel vernier camshaft pulley set, listed for Subaru Impreza GC8/GF8 (1999-2001). Anodised black alloy outer with a stainless steel inner hub, laser-etched timing markings and a one-piece belt guide. Supplied with ARP high-strength bolts. Please confirm exact model fitment before ordering.

RCM alloy/steel vernier camshaft pulley set for Subaru Impreza 1996-1998 (V3-V4). Anodised red alloy outer with a stainless steel inner hub, laser-etched timing markings and a one-piece belt guide. Supplied with ARP high-strength bolts.

RCM Powerparts performance camshaft kit for non-DBW Subaru STI V7-V9 models (GD/GG, 2001-2007). Please contact Scooby Upgrades for full specification and kit contents, and to confirm exact fitment, before ordering.

RCM Powerparts performance camshaft kit for Subaru Impreza V1-V4 (GC/GF), 1992-2000. Please contact Scooby Upgrades for full specification and kit contents before ordering.

RCM double valve spring set (RCM906) for V5+ cylinder heads, requiring the correct spring seats and retainers. Manufactured from chrome silicon vanadium, heat treated, stress relieved and shot peened for improved fatigue life. Please confirm compatibility before ordering.

RCM V3/4 uprated valve springs, offering an increased spring rate over the standard genuine spring to help reduce valve bounce at high revs. Unfitted length 54mm, coil diameter 3.8mm, approx. 48g each; seat pressure 33kgf, lift pressure 72.8kgf. Uses the standard spring seat and retainer.

RCM Powerparts performance camshaft kit for dual-AVCS Subaru STI V10 applications, covering Impreza/WRX STI (GR/GV) and WRX STI (VA/VAB) models. Please contact Scooby Upgrades for full specification and kit contents, and to confirm fitment, before ordering.

RCM nitrided steel spring seat spacers for V5+ cylinder heads. Please confirm compatibility with your specific engine and valve spring setup before ordering.

RCM nitrided steel spring seat spacers for V3/4 cylinder heads, for use only with the RCM double valve spring kit (RCM906). Please confirm compatibility with your specific engine setup before ordering.