Fuji Racing 14/12MM Cylinder Head Studs Kits

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  • $699.00
  • Regular price $729.00
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Designed for the ultimate in engine performance and reliability, Fuji Racings 14mm/12mm Head Stud Kit is a must-have component for any EJ engine build where 450bhp+ power output is expected. It is essential to 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. The Fuji Racing 14/12mm Head Stud kit provides this peace of mind and cuts out the expense of cylinder head modification.



Now used in many engines builds from fast road cars to full-on Group A rally cars the Fuji Racing 14/12mm Head Stud Kit is used by many engine builders/tuners of today. Replacing the 11mm Subaru cylinder head bolts with our 14/12mm 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 OEM bolts and the increased stability provided by the Fuji Racing stud's larger diameter when further combined with the more uniform clamping force provided by the stud and nut arrangement it is clear why so many successful engines run these kits!

– Manufactured from certified S99
– Tensile strength between 180,000 and 210,000 psi ( MPa: 1230 – 1420 )
– Precision rolled threads
– Works with OEM size head gaskets
– Stud pitch into block m14x2


Suitable for the following models:

  • All Subaru EJ Engines

If you are unsure of fitment or application then please contact us with your vehicle's chassis number.



OUT OF STOCK? No worries, a backorder is available.
Simply send us a message on the inquiry screen "here" and we can manually process your back order and supply time frames.

    PLEASE NOTE: ALL PARTS ARE SUBJECT TO AVAILABILITY unless stock level indicated on product page.