Engine

An RCM block case blanking kit for used block rebuilds, with each bung anodised black and laser marked with the RCM Power Parts logo. Includes new aluminium sealing washers, the oil pressure switch bung and 2 plain block sealing bolts for the top of the block.

A radiator cool panel guide for Subaru Impreza (2001–2007), made from laser-cut brushed stainless steel. Locates between the bonnet slam panel and radiator to direct incoming air through the radiator core.

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.

The RCM450 2.1L High Compression Thick Wall Short Engine is a high-compression Subaru EJ-series short engine assembled by RCM, built around a thick-wall block in 2.1L configuration. Each unit is finished with an individual build tag recording its specification, builder and date. Please contact Scooby Upgrades to confirm exact vehicle and engine compatibility before ordering.

The RCM400 2.1L High Compression Thick Wall Short Engine is a high-compression Subaru EJ-series short engine assembled by RCM, built around a thick-wall block in 2.1L configuration. Each unit is finished with an individual build tag recording its specification, builder and date. Please contact Scooby Upgrades to confirm exact vehicle and engine compatibility before ordering.

Low expansion forged piston set manufactured by Omega Pistons for the EJ25 engine in WRX/STI models from 2006 onward (V9+). Supplied in standard bore plus 0.25mm and 0.50mm oversize.

This blanking plate kit from RCM fits applications where the standard oil filler neck is no longer used, such as dry-sump conversions using an external oil tank. Available for V1-V4 and V5+ EJ-series engines.

This service refinishes Subaru rocker covers in STI-style crinkle paint, available in Red or Black. Covers are cleaned and stripped before recoating; customers must send in their own rocker covers to proceed.

This Superstud head stud kit from RCM (14mm/14mm) uses a larger 9/16″ diameter stud made from aircraft-grade S99 steel for Subaru EJ-series engines. Supplied with 12x ARP 9/16″ 8740 chromoly nuts and washers and compatible with RCM head gaskets.

The RCM700 2.1L High Compression Closed Deck Block Short Engine is a high-compression Subaru EJ-series short engine assembled by RCM, built around a closed deck block in 2.1L configuration. Each unit is finished with an individual build tag recording its specification, builder and date. Please contact Scooby Upgrades to confirm exact vehicle and engine compatibility…