RCM 14/12mm Superstud Cylinder Head Stud Kit - Subaru WRX/STI/FXT/LGT (EJ20/EJ25)

RCM 14/12mm Superstud Cylinder Head Stud Kit - Subaru WRX/STI/FXT/LGT (EJ20/EJ25) - Sydney Performance Parts & Tyres - Prestons Sydney Australia
RCM 14/12mm Superstud Cylinder Head Stud Kit - Subaru WRX/STI/FXT/LGT (EJ20/EJ25) - Sydney Performance Parts & Tyres - Prestons Sydney Australia
RCM 14/12mm Superstud Cylinder Head Stud Kit - Subaru WRX/STI/FXT/LGT (EJ20/EJ25) - Sydney Performance Parts & Tyres - Prestons Sydney Australia
RCM 14/12mm Superstud Cylinder Head Stud Kit - Subaru WRX/STI/FXT/LGT (EJ20/EJ25) - Sydney Performance Parts & Tyres - Prestons Sydney Australia
RCM 14/12mm Superstud Cylinder Head Stud Kit - Subaru WRX/STI/FXT/LGT (EJ20/EJ25) - Sydney Performance Parts & Tyres - Prestons Sydney Australia

RCM 14/12mm Superstud Cylinder Head Stud Kit - Subaru WRX/STI/FXT/LGT (EJ20/EJ25)

Regular price $1,044.95
/

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

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.

 

Key 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 ARP high tensile nuts, washers, RCM assembly lube and installation guide.
  • As used in RCM Gobstopper I + II Time Attack race cars.

 

Supplied in the kit are:

  • x12 RCM 14mm head studs.
  • x12 ARP M12 x 1.25 8740 Chromoly 12pt nut
  • x12 ARP 12mm 8740 Chromoly washer
  • 1x Sachet of assembly lube and fitting guide for a comprehensive install.

 

Notes:

  • 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. RCM can carry this work out for you at  additional cost (see part number RCM237 or contact us for more details).
  • Non RCM manufactured head gaskets used alongside this kit will require slight modification using our tapered reamer tool (See part number RCM910).
  • 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): M12 x 1.25.
  • Cylinder head stud length: 197mm.
Vehicle Fitment is provided as a guide only to narrow down results. Please check listing for any additional information (measurements, specifications, additional notes) which may affect compatibility or ask for assistance.
  • 1989 Subaru Liberty BC/BF
  • 1990 Subaru Liberty BC/BF
  • 1991 Subaru Liberty BC/BF
  • 1992 Subaru Liberty BC/BF
  • 1993 Subaru Liberty BC/BF
  • 1993 Subaru Liberty BD/BG
  • 1994 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1994 Subaru Liberty BD/BG
  • 1994 Subaru STI GC8
  • 1994 Subaru WRX GC8/GF8
  • 1995 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1995 Subaru Liberty BD/BG
  • 1995 Subaru STI GC8
  • 1995 Subaru WRX GC8/GF8
  • 1996 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1996 Subaru Liberty BD/BG
  • 1996 Subaru STI GC8
  • 1996 Subaru WRX GC8/GF8
  • 1997 Subaru Forester SF
  • 1997 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1997 Subaru Liberty BD/BG
  • 1997 Subaru STI GC8
  • 1997 Subaru WRX GC8/GF8
  • 1998 Subaru Forester SF
  • 1998 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1998 Subaru Liberty BD/BG
  • 1998 Subaru Liberty BE/BH
  • 1998 Subaru STI GC8
  • 1998 Subaru WRX GC8/GF8
  • 1999 Subaru Forester SF
  • 1999 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1999 Subaru Liberty BE/BH
  • 1999 Subaru STI GC8
  • 1999 Subaru WRX GC8/GF8
  • 2000 Subaru Forester SF
  • 2000 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 2000 Subaru Liberty BE/BH
  • 2000 Subaru STI GC8
  • 2000 Subaru WRX GC8/GF8
  • 2001 Subaru Forester SF
  • 2001 Subaru Liberty BE/BH
  • 2001 Subaru STI GDB
  • 2001 Subaru WRX GDA/GGA
  • 2002 Subaru Forester SF
  • 2002 Subaru Liberty BE/BH
  • 2002 Subaru STI GDB
  • 2002 Subaru WRX GDA/GGA
  • 2003 Subaru Forester SG (Non-Turbo)
  • 2003 Subaru Forester SG XT (Turbo)
  • 2003 Subaru Liberty BE/BH
  • 2003 Subaru STI GDB
  • 2003 Subaru WRX GDA/GGA
  • 2004 Subaru Forester SG (Non-Turbo)
  • 2004 Subaru Forester SG XT (Turbo)
  • 2004 Subaru Liberty BL/BP (Non-Turbo)
  • 2004 Subaru Liberty BL/BP (Turbo)
  • 2004 Subaru STI GDB
  • 2004 Subaru WRX GDA/GGA
  • 2005 Subaru Forester SG (Non-Turbo)
  • 2005 Subaru Forester SG XT (Turbo)
  • 2005 Subaru Liberty BL/BP (Non-Turbo)
  • 2005 Subaru Liberty BL/BP (Turbo)
  • 2005 Subaru STI GDB
  • 2005 Subaru WRX GDA/GGA
  • 2006 Subaru Forester SG (Non-Turbo)
  • 2006 Subaru Forester SG XT (Turbo)
  • 2006 Subaru Liberty BL/BP (Non-Turbo)
  • 2006 Subaru Liberty BL/BP (Turbo)
  • 2006 Subaru STI GDB
  • 2006 Subaru WRX GDA/GGA
  • 2007 Subaru Forester SG (Non-Turbo)
  • 2007 Subaru Forester SG XT (Turbo)
  • 2007 Subaru Liberty BL/BP (Non-Turbo)
  • 2007 Subaru Liberty BL/BP (Turbo)
  • 2007 Subaru STI GDB
  • 2007 Subaru WRX GDA/GGA
  • 2008 Subaru Forester SG (Non-Turbo)
  • 2008 Subaru Forester SG XT (Turbo)
  • 2008 Subaru Forester SH (Non-Turbo)
  • 2008 Subaru Forester SH XT (Turbo)
  • 2008 Subaru Liberty BL/BP (Non-Turbo)
  • 2008 Subaru Liberty BL/BP (Turbo)
  • 2008 Subaru STI GRF
  • 2008 Subaru WRX GEE/GHE
  • 2009 Subaru Forester SH (Non-Turbo)
  • 2009 Subaru Forester SH XT (Turbo)
  • 2009 Subaru Liberty BL/BP (Non-Turbo)
  • 2009 Subaru Liberty BL/BP (Turbo)
  • 2009 Subaru STI GRF
  • 2009 Subaru WRX GEE/GHE
  • 2010 Subaru Forester SH (Non-Turbo)
  • 2010 Subaru Forester SH XT (Turbo)
  • 2010 Subaru Liberty BM/BR (Non-Turbo)
  • 2010 Subaru Liberty BM/BR (Turbo)
  • 2010 Subaru STI GRF
  • 2010 Subaru WRX GEE/GHE
  • 2011 Subaru Forester SH (Non-Turbo)
  • 2011 Subaru Forester SH XT (Turbo)
  • 2011 Subaru Liberty BM/BR (Non-Turbo)
  • 2011 Subaru Liberty BM/BR (Turbo)
  • 2011 Subaru STI GVF/GRF
  • 2011 Subaru WRX GVE/GRE
  • 2012 Subaru Forester SH (Non-Turbo)
  • 2012 Subaru Forester SH XT (Turbo)
  • 2012 Subaru Liberty BM/BR (Non-Turbo)
  • 2012 Subaru Liberty BM/BR (Turbo)
  • 2012 Subaru STI GVF/GRF
  • 2012 Subaru WRX GVE/GRE
  • 2013 Subaru Forester SH (Non-Turbo)
  • 2013 Subaru Forester SH XT (Turbo)
  • 2013 Subaru Liberty BM/BR (Non-Turbo)
  • 2013 Subaru Liberty BM/BR (Turbo)
  • 2013 Subaru STI GVF/GRF
  • 2013 Subaru WRX GVE/GRE
  • 2014 Subaru Liberty BM/BR (Non-Turbo)
  • 2014 Subaru Liberty BM/BR (Turbo)
  • 2014 Subaru STI GVF/GRF
  • 2014 Subaru WRX GVE/GRE
  • 2015 Subaru STI VAB
  • 2016 Subaru STI VAB
  • 2017 Subaru STI VAB
  • 2018 Subaru STI VAB
  • 2019 Subaru STI VAB
  • 2020 Subaru STI VAB
  • 2021 Subaru STI VAB

 

  • We offer Local Delivery and Pickup
  • Secure payments
  • In stock, ready to ship
  • Inventory on the way
Tax included. Shipping calculated at checkout.

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

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.

 

Key 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 ARP high tensile nuts, washers, RCM assembly lube and installation guide.
  • As used in RCM Gobstopper I + II Time Attack race cars.

 

Supplied in the kit are:

  • x12 RCM 14mm head studs.
  • x12 ARP M12 x 1.25 8740 Chromoly 12pt nut
  • x12 ARP 12mm 8740 Chromoly washer
  • 1x Sachet of assembly lube and fitting guide for a comprehensive install.

 

Notes:

  • 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. RCM can carry this work out for you at  additional cost (see part number RCM237 or contact us for more details).
  • Non RCM manufactured head gaskets used alongside this kit will require slight modification using our tapered reamer tool (See part number RCM910).
  • 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): M12 x 1.25.
  • Cylinder head stud length: 197mm.
Vehicle Fitment is provided as a guide only to narrow down results. Please check listing for any additional information (measurements, specifications, additional notes) which may affect compatibility or ask for assistance.
  • 1989 Subaru Liberty BC/BF
  • 1990 Subaru Liberty BC/BF
  • 1991 Subaru Liberty BC/BF
  • 1992 Subaru Liberty BC/BF
  • 1993 Subaru Liberty BC/BF
  • 1993 Subaru Liberty BD/BG
  • 1994 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1994 Subaru Liberty BD/BG
  • 1994 Subaru STI GC8
  • 1994 Subaru WRX GC8/GF8
  • 1995 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1995 Subaru Liberty BD/BG
  • 1995 Subaru STI GC8
  • 1995 Subaru WRX GC8/GF8
  • 1996 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1996 Subaru Liberty BD/BG
  • 1996 Subaru STI GC8
  • 1996 Subaru WRX GC8/GF8
  • 1997 Subaru Forester SF
  • 1997 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1997 Subaru Liberty BD/BG
  • 1997 Subaru STI GC8
  • 1997 Subaru WRX GC8/GF8
  • 1998 Subaru Forester SF
  • 1998 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1998 Subaru Liberty BD/BG
  • 1998 Subaru Liberty BE/BH
  • 1998 Subaru STI GC8
  • 1998 Subaru WRX GC8/GF8
  • 1999 Subaru Forester SF
  • 1999 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 1999 Subaru Liberty BE/BH
  • 1999 Subaru STI GC8
  • 1999 Subaru WRX GC8/GF8
  • 2000 Subaru Forester SF
  • 2000 Subaru Impreza GC8/GF8 (Non-Turbo)
  • 2000 Subaru Liberty BE/BH
  • 2000 Subaru STI GC8
  • 2000 Subaru WRX GC8/GF8
  • 2001 Subaru Forester SF
  • 2001 Subaru Liberty BE/BH
  • 2001 Subaru STI GDB
  • 2001 Subaru WRX GDA/GGA
  • 2002 Subaru Forester SF
  • 2002 Subaru Liberty BE/BH
  • 2002 Subaru STI GDB
  • 2002 Subaru WRX GDA/GGA
  • 2003 Subaru Forester SG (Non-Turbo)
  • 2003 Subaru Forester SG XT (Turbo)
  • 2003 Subaru Liberty BE/BH
  • 2003 Subaru STI GDB
  • 2003 Subaru WRX GDA/GGA
  • 2004 Subaru Forester SG (Non-Turbo)
  • 2004 Subaru Forester SG XT (Turbo)
  • 2004 Subaru Liberty BL/BP (Non-Turbo)
  • 2004 Subaru Liberty BL/BP (Turbo)
  • 2004 Subaru STI GDB
  • 2004 Subaru WRX GDA/GGA
  • 2005 Subaru Forester SG (Non-Turbo)
  • 2005 Subaru Forester SG XT (Turbo)
  • 2005 Subaru Liberty BL/BP (Non-Turbo)
  • 2005 Subaru Liberty BL/BP (Turbo)
  • 2005 Subaru STI GDB
  • 2005 Subaru WRX GDA/GGA
  • 2006 Subaru Forester SG (Non-Turbo)
  • 2006 Subaru Forester SG XT (Turbo)
  • 2006 Subaru Liberty BL/BP (Non-Turbo)
  • 2006 Subaru Liberty BL/BP (Turbo)
  • 2006 Subaru STI GDB
  • 2006 Subaru WRX GDA/GGA
  • 2007 Subaru Forester SG (Non-Turbo)
  • 2007 Subaru Forester SG XT (Turbo)
  • 2007 Subaru Liberty BL/BP (Non-Turbo)
  • 2007 Subaru Liberty BL/BP (Turbo)
  • 2007 Subaru STI GDB
  • 2007 Subaru WRX GDA/GGA
  • 2008 Subaru Forester SG (Non-Turbo)
  • 2008 Subaru Forester SG XT (Turbo)
  • 2008 Subaru Forester SH (Non-Turbo)
  • 2008 Subaru Forester SH XT (Turbo)
  • 2008 Subaru Liberty BL/BP (Non-Turbo)
  • 2008 Subaru Liberty BL/BP (Turbo)
  • 2008 Subaru STI GRF
  • 2008 Subaru WRX GEE/GHE
  • 2009 Subaru Forester SH (Non-Turbo)
  • 2009 Subaru Forester SH XT (Turbo)
  • 2009 Subaru Liberty BL/BP (Non-Turbo)
  • 2009 Subaru Liberty BL/BP (Turbo)
  • 2009 Subaru STI GRF
  • 2009 Subaru WRX GEE/GHE
  • 2010 Subaru Forester SH (Non-Turbo)
  • 2010 Subaru Forester SH XT (Turbo)
  • 2010 Subaru Liberty BM/BR (Non-Turbo)
  • 2010 Subaru Liberty BM/BR (Turbo)
  • 2010 Subaru STI GRF
  • 2010 Subaru WRX GEE/GHE
  • 2011 Subaru Forester SH (Non-Turbo)
  • 2011 Subaru Forester SH XT (Turbo)
  • 2011 Subaru Liberty BM/BR (Non-Turbo)
  • 2011 Subaru Liberty BM/BR (Turbo)
  • 2011 Subaru STI GVF/GRF
  • 2011 Subaru WRX GVE/GRE
  • 2012 Subaru Forester SH (Non-Turbo)
  • 2012 Subaru Forester SH XT (Turbo)
  • 2012 Subaru Liberty BM/BR (Non-Turbo)
  • 2012 Subaru Liberty BM/BR (Turbo)
  • 2012 Subaru STI GVF/GRF
  • 2012 Subaru WRX GVE/GRE
  • 2013 Subaru Forester SH (Non-Turbo)
  • 2013 Subaru Forester SH XT (Turbo)
  • 2013 Subaru Liberty BM/BR (Non-Turbo)
  • 2013 Subaru Liberty BM/BR (Turbo)
  • 2013 Subaru STI GVF/GRF
  • 2013 Subaru WRX GVE/GRE
  • 2014 Subaru Liberty BM/BR (Non-Turbo)
  • 2014 Subaru Liberty BM/BR (Turbo)
  • 2014 Subaru STI GVF/GRF
  • 2014 Subaru WRX GVE/GRE
  • 2015 Subaru STI VAB
  • 2016 Subaru STI VAB
  • 2017 Subaru STI VAB
  • 2018 Subaru STI VAB
  • 2019 Subaru STI VAB
  • 2020 Subaru STI VAB
  • 2021 Subaru STI VAB

 

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