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RCM Head Stud Kit - 14/12mm Superstud (EJ20, EJ22, EJ25)
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 14mm Superstud kit to improve performance and ease of installation for your EJ engine.
• Larger size stud (still compatible with RCM Head Gaskets)
• Supplied with x12 ARP M12 x1.25 8740 Chromoly 12pt nut
• Supplied with x12 ARP 12mm 8740 Chromoly washer
• Incorporating hex in stud end for super easy install
• 197mm in length
It is essential engines modified to 500+bhp 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 14mm /12mm Superstud Head Stud kit provides this peace of mind!
Now used in many of the fastest and most powerful Imprezas across the globe the RCM 14mm /12mm Superstud 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.
$557.04
SKU
RCM2903
Founded in the early 1991 by multiple RAC winner and British Rally Champion Roger Clark MBE, Roger Clark Motorsport is one of the UK's (and for that matter, global rally's) premier motorsport and product development specialists and tuners. Roger Clark Motorsport specialize in the Impreza platform (the car-of-choice for their unparalleled Time Attack Cars Gobstopper I, Gobstopper II and soon Gobstopper III), and have passed on these high-performance components to the consumer market. We are incredibly proud to be one of the only U.S. distributors able to offer these exceptional Roger Clark Motorsports parts.
| Model | Fitment Confirmation |
|---|---|
| EJ205 | ✓ |
| EJ207 | ✓ |
| EJ22 | ✓ |
| EJ255 | ✓ |
| EJ257 | ✓ |
|
[ NOTE ] To allow fitting of the RCM 14/12mm Head stud kit your engine block must be re engineered to accept the larger studs used in this kit. Non RCM manufactured head gaskets used alongside this kit will require slight modification using our tapered reamer tool. |
|
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to P65Warnings
| SKU | RCM2903 |
|---|---|
| Brand | Roger Clark |
| Product Type | Engine |
| Engine | Engine Internals |
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