Valve Train & Camshafts

RCM titanium valve spring retainers, supplied as a set of 16. For use with RCM double valve springs and later-style buckets with integrated shims. Please confirm compatibility with your engine before ordering.

RCM V5/6 uprated valve springs, offering an increased spring rate over the standard Subaru spring to help reduce valve bounce at high revs. Unfitted length 43.5mm, coil diameter 3.8mm, approx. 40g each. Fits Subaru Impreza (GC/GF), V5/6.

RCM Powerparts Spec C profile camshaft kit (STI V7-V9), replicating the OEM cam profile used on JDM Hawkeye Spec C models. Each cam is precision ground and polished from a new blank. Please confirm exact vehicle fitment before ordering.

RCM 35mm billet bucket shim, available in sizes from 4.50mm to 5.10mm. Each shim is precision ground, surface lapped and laser marked with its size. Fits a wide range of Subaru models. Please confirm compatibility before ordering. Sold individually.

RCM Powerparts performance camshaft kit (V9 STI/WRX DBW) for Subaru Impreza 2006-2007 (Hawkeye). Please contact Scooby Upgrades for full specification and kit contents before ordering.

RCM Powerparts performance camshaft kit for V5-V8 Subaru Impreza WRX models (GC/GF, Bugeye, Blobeye, Hawkeye). Please contact Scooby Upgrades for full specification and kit contents, and to confirm fitment, before ordering.

RCM Powerparts camshaft conversion kit (V9 STI DBW) for fitting an EJ207 engine into a vehicle originally equipped with an EJ257 engine. Compatible with EJ207 VVT cylinder heads and the EJ207 drive-by-wire 3-pin cam sensor. Fits Subaru Impreza 2006-2007 (Hawkeye).

Genuine Subaru valve collet set, supplying 32 collets required when fitting valves. Covers a wide range of Subaru Forester, Impreza and Legacy models. Please confirm the correct part for your engine before ordering.

Tomei Duralumin adjustable cam gear set for single-AVCS Subaru applications, supplied as a pair. Allows fine adjustment of camshaft timing when running OE or aftermarket camshafts. Please confirm fitment for your specific model before ordering.

Alloy replacement camshaft pulley kit for single-AVCS EJ207 and EJ25 Subaru engines, supplying single-piece aluminium pulleys in place of the factory plastic units. Fits a wide range of EJ-engine Subaru models. Please confirm application before ordering.