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RCM700 2.1L High Compression Closed Deck Block Short Engine. RCM pride themselves on supplying the ultimate range of custom built EJ Series short engines. We have built an enviable reputation of assembling high powered Subaru power units to a meticulous level of detail not seen in the tuning industry before. This level and depth of…

Introducing our new RCM Gen 3 High Grip Tensioner Bracket Kit! Utilising the latest FEA analysis in order to optimise strength the all new geometry offers much increased component stiffness in critical high stress areas. Now directly compatible with the popular CNC billet EJ engine blocks for the ultimate EJ engine package in addition to…

Our new thermostat is designed not only to improve reliability (thanks to its superior construction and our strict quality control inspection process) but also to provide an earlier start in your engine’s cooling process. With a low temp thermostat in place your engine coolant is allowed to circulate around the engine much earlier which allows…

The latest evolution of our proven and hugely successful 14/14mm RCM Head Stud Kit designed for the ultimate in engine performance and reliability! Introducing the new RCM 14mm Superstud Head Stud Kit. Our engineers have taken the ultimate EJ series head stud solution to the next level by incorporating some new features into the RCM…

The latest evolution of our proven and hugely successful 14/12mm RCM Head Stud Kit designed for the ultimate in engine performance and reliability! Introducing the new RCM 14mm Superstud Head Stud Kit. Our engineers have taken the ultimate EJ series head stud solution to the next level by incorporating some new features into the RCM…

RCM prides itself having OE parts manufacturers as their technical partners which also includes Aisin. Aisin manufacture and supply our aftermarket high quality water pumps giving you total peace of mind knowing you have the right parts at the right price! This 3 port water pump, pumps coolant around the engine using the favoured cavitation…

The High Grip Tensioner System has been developed as a solution to the problem of belts bouncing and skipping teeth at high RPM, which can have catastrophic results. For many years, race and rally teams have preferred to use the original 2 piece tensioner system as it is more reliable than the later single piece…

The High Grip Tensioner System has been developed as a solution to the problem of belts bouncing and skipping teeth at high RPM, which can have catastrophic results. For many years, race and rally teams have preferred to use the original 2 piece tensioner system as it is more reliable than the later single piece…

The High Grip Tensioner System has been developed as a solution to the problem of belts bouncing and skipping teeth at high RPM, which can have catastrophic results. For many years, race and rally teams have preferred to use the original 2 piece tensioner system as it is more reliable than the later single piece…

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…