RCM
RCM Head Stud Kit - 14/14mm (EJ20, EJ22, EJ25)
RCM Head Stud Kit - 14/14mm (EJ20, EJ22, EJ25)
SKU:RCM593
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Designed for the ultimate in engine performance and reliability and derived from the rigors of the World Rally Championship, RCM 14mm/14mm Head Stud Kit has consistently proven itself as amust havecomponentof 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.
FEATURES
- Huge increase in tensile strength and yield when compared with the OE head bolts
- Massively increased clamping load for big bhp applications
- Eliminates cylinder head lift at high levels of boost
- Supplied with high tensile nuts, assembly lube and installation guide
- As used in RCM Gobstopper I + II Time Attack race cars
- Made in the UK from high tensile aircraft grade S99 steel to WRC spec
- Precision rolled threads for maximum strength
TECHNICAL SPECIFICATIONS
- Cylinder head studs manufactured using "Aircraft Grade S99 High Tensile Steel" to WRC specification
- Precision rolled threads
- Cylinder head stud thread pitch (Block End): M14X2
- Cylinder head stud thread pitch (Cylinder Head end): M14X1.5
- Cylinder head stud length: 197mm
INCLUDED IN THIS KIT
- 12 x RCM 14mm head studs
- 12 x high tensile nuts
- 1 x Sachet of assembly lube and fitting guide for a comprehensive install
Return Policy For Clearance Items
Return Policy For Clearance Items
This is a Clearance item and is not returnable.
All sales are final on these items.
Installation Guides
Installation Guides
To see all available installation and break-in instructions, click here.
Disclaimers & Legal
Disclaimers & Legal
This part has been designed and is intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards.
Click Here for emissions compliance information.
California Residents Prop 65 Information
California’s Proposition 65 entitles California consumers to special warnings for products that contain chemicals known to the state of California to cause cancer and birth defects or other reproductive harm if those products expose consumers to such chemicals above certain threshold levels. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information visit www.P65warnings.ca.gov.
Clearance Items
At Mountune USA, we occasionally offer clearance items at discounted prices. These items are sold as-is and cannot be returned or exchanged.Due to the nature of clearance sales, all sales are final. This means that once you make a purchase, you cannot return the item for a refund or exchange it for another product.
Clearance items may include discontinued products, overstocked items, or items with minor cosmetic imperfections. While these products are still functional and can provide great value, it's important to understand that they may not come with the same level of warranty or customer support as our regular products.
Before purchasing a clearance item, we recommend reviewing the product description and any available specifications to ensure it meets your needs. If you have any questions about a specific clearance item, feel free to contact us for more information.
Please note that our regular refund policy does not apply to clearance items. If you have any concerns or issues with a clearance item, we encourage you to reach out to our customer support team, and we will do our best to assist you.
Thank you for choosing Mountune USA for your automotive needs. We strive to provide high-quality products and exceptional customer service, even when it comes to clearance items. Remember, all sales of clearance items are final, so make sure to carefully consider your purchase before completing the transaction.
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