RCM HIGH PERFORMANCE 11MM CYLINDER HEAD STUD KIT

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The RCM 11mm Performance Head Stud Kit is highly recommended for any new or rebuilt engine producing up to or around 350bhp.

Manufactured from S99 Steel with a certified minimum yield strength of 1080 MPa our new Performance Studs offer a substantialy greater force on your cylinder head gaskets when compared to the O.E cylinder head bolts. With a greater pressure placed on your cylinder heads (and in turn your cylinder head gaskets) this greatly reduces the chance of head movement under boost, keeping your precious head gaskets stable and allowing them to continue providing an effective seal from cylinder chambers, oil and waterways.

All kits are supplied with RCM’s own assembly lube, which utilizes Graphite DJ technology, ensuring you are able to install to the correct torque figures accurately

RCM1635

RCM EXTREME 11MM CYLINDER HEAD STUD KIT

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The RCM1540 Extreme 11mm Head Stud kit is an absolute must for your performance build.  Manufactured from Aircraft Grade S99 Steel, and with a tensile strength in excess of 237,000 Psi (1640MPa), our 11mm kit reduces head movement under boost, and provides optimum head to block clamping, ably dealing with the higher combustion pressures associated with a modified performance engine, up to around 450Bhp.

All kits are supplied with RCM’s own assembly lube, which utilizes Graphite DJ technology, ensuring you are able to install to the correct torque figures accurately.

RCM1540

RCM 14/14MM CYLINDER HEAD STUD KIT

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Designed for the ultimate in engine performance and reliability and derived from the rigors of the World Rally Championship, RCM’s 14mm/14mm Head Stud Kit has consistently proven itself as a must have component of any EJ20/22/25 engine build where 500bhp+ power output is expected. It is essential engines modified to this level have the most reliable system for clamping the cylinder heads onto the block assembly to avoid the heads lifting under load at high levels of boost pressure. The RCM 14/14mm Head Stud kit provides this peace of mind!

Now used in many of the fastest and most powerful Imprezas across the globe the RCM 14/14mm Head Stud Kit is quite simply the foundation on which all our high bhp engine conversions (including Gobstopper and Gobstopper 2) race engines are built around. Replacing the conventional 11mm Subaru cylinder head bolts with a series of 14mm precisely manufactured super high tensile, aircraft grade S99 steel stud and nut system offers many advantages when building your engine. With a tensile strength much higher than that of the OE bolts and the increased stability provided by the RCM studs larger diameter when further combined with the more uniform clamping force provided by the stud and nut arrangement it is clear why so many championship winning engines run these kits!

All kits are supplied with RCM’s own assembly lube, which utilizes Graphite DJ technology, ensuring you are able to install to the correct torque figures accurately.

RCM593

RCM HEARTS DG.

diversion garage is rcm’s major australian distributer.

we stock all key product lines for part sales & engine builds.

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sales@diversiongarage.com.au

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