SET YOUR CAR
Buy Now, Pay Later!
FREE SHIPPING
On orders over $200
TALK TO A PARTS EXPERT
RALLYSPORT GUARANTEE
100% Money Back on Select Parts
Product images
Product Media
Cosworth High Performance Head Gasket .78mm (Part Number: )
Cosworth High Performance Head Gasket .78mm (Part Number: )
Cosworth High Performance Head Gasket .78mm (Part Number: )
Cosworth High Performance Head Gasket .78mm (Part Number: )
Community Media
Cosworth High Performance Head Gasket .78mm (Part Number: )
Cosworth High Performance Head Gasket .78mm
Subaru EJ25 Turbo Models (inc. 2004-2007 STI / 2006-2014 WRX)
Read 1 Reviews | 3 Q&As
Part # 20000913
$79.00

In stock! Ships same day

Features & Product Details

Cosworth High-Performance Multi-layer steel head gaskets are designed to seal in power under the most demanding conditions.

Features:
  • Individual die cut layers of stainless steel with superior consistency compared to laser cut gaskets.
  • Pre-coated stainless steel with a 0.25-micron layer of nitrile rubber ensures consistent distribution of coating with no high or low areas.
  • Manufacturing dimensional tolerance of 0.002".
  • Die cut manufacturing process ensures smooth edges, unlike laser cut gaskets.
  • Cosworth gaskets feature a "stopper" sealing layer for additional torque around each cylinder. The width of sealing area is specific for each application thereby providing ultimate sealing properties.

  • Specs:
  • Bore: 101mm
  • Thickness: .78mm

  • PRICE IS PER GASKET! TWO GASKETS ARE REQUIRED FOR A COMPLETE SUBARU MOTOR

    Specifications

    Brand: Cosworth
    Bore Size: 101mm
    QTY: 1
    Thickness: 0.78mm
    Mfgr. Warranty: No Warranty
    Condition: New Product
    Return Policy:

    RallySport Guarantee - 30 Days


    Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

    The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
    Standard

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    1 Reviews
    5 out of 5 Stars
    5 Stars
    (1)
    4 Stars
    (0)
    3 Stars
    (0)
    2 Stars
    (0)
    1 Stars
    (0)
    Customer Photos and Videos
    Cosworth High Performance Head Gasket .78mm ( Part Number: 20000913)
    Easy to install when you're at that point 7 months ago
    Tristan
    It's a pain to get to the head gasket, but once the head is off, this gasket slides right on without any problems.
      
    Was this review helpful?

    QUESTIONS & ANSWERS

    • Q: What am I measuring?  Sti_nate3 years ago

      It's a 2006 sti all stock internals, I blew the OEM gaskets and so I'm wanting something stronger then the OEM. I'm not wanting to do anything else at the moment to the engine, so I just want to make I can put these on with out doing anything more. And if these won't work, what kinda would you recommend that will work with a stock engine but are better than the OEM ones
      • 1 of 1 people found the following answer helpful

        A:  These should work fine for your needs as long as the surface of your head and block are flat, if you remove material you may have to go with a thicker gasket to compensate.

        Nick S. @ RallySport Direct 3 years ago  
          
        Was this answer helpful?
    • Q: Fit  Sti_nate3 years ago

      Will this fit a stock 2006 sti?
      • 0 of 0 people found the following answer helpful

        A:  These will work on an EJ257 block, but you will need to take some measurements to determine proper gasket thickness as these are thicker than OEM.

          
        Was this answer helpful?
      • 0 of 0 people found the following answer helpful

        A: 

        Sti_nate
          
        Was this answer helpful?
    • Q: OEM Spec  04sti8084 years ago

      I just oredered a EJ257 short block that I'm building, its brand new OEM Spec block. I'm putting weisco forged pistons in and Cosworth Head Studs. Will these fit on my heads that I just had machined? I had the whole top end re-built and now I'm personally doing the lower end. Thanks
      • 0 of 0 people found the following answer helpful

        A:  I recommend consulting with the person assembling your motor. These head gaskets have a bore of 101mm and a thickness of .78mm. Thank you.

        Sterling W. @ RallySport Direct 4 years ago  
          
        Was this answer helpful?

    This Part Fits

    Saab 9-2X
    Aero
    2006 Saab 9-2X Aero
    Subaru Impreza
    WRX
    2006 Subaru Impreza WRX
    2007 Subaru Impreza WRX
    WRX Hatchback
    2008 Subaru Impreza WRX Hatchback
    2009 Subaru Impreza WRX Hatchback
    2010 Subaru Impreza WRX Hatchback
    2011 Subaru Impreza WRX Hatchback
    2012 Subaru Impreza WRX Hatchback
    2013 Subaru Impreza WRX Hatchback
    2014 Subaru Impreza WRX Hatchback
    WRX Limited
    2006 Subaru Impreza WRX Limited
    2007 Subaru Impreza WRX Limited
    WRX Limited Hatchback
    2010 Subaru Impreza WRX Limited Hatchback
    2011 Subaru Impreza WRX Limited Hatchback
    2012 Subaru Impreza WRX Limited Hatchback
    2013 Subaru Impreza WRX Limited Hatchback
    2014 Subaru Impreza WRX Limited Hatchback
    WRX Limited Sedan
    2010 Subaru Impreza WRX Limited Sedan
    2011 Subaru Impreza WRX Limited Sedan
    2012 Subaru Impreza WRX Limited Sedan
    2013 Subaru Impreza WRX Limited Sedan
    2014 Subaru Impreza WRX Limited Sedan
    WRX Premium Hatchback
    2010 Subaru Impreza WRX Premium Hatchback
    2011 Subaru Impreza WRX Premium Hatchback
    2012 Subaru Impreza WRX Premium Hatchback
    2013 Subaru Impreza WRX Premium Hatchback
    2014 Subaru Impreza WRX Premium Hatchback
    WRX Premium Sedan
    2010 Subaru Impreza WRX Premium Sedan
    2011 Subaru Impreza WRX Premium Sedan
    2012 Subaru Impreza WRX Premium Sedan
    2013 Subaru Impreza WRX Premium Sedan
    2014 Subaru Impreza WRX Premium Sedan
    WRX STI
    2004 Subaru Impreza WRX STI
    2005 Subaru Impreza WRX STI
    2006 Subaru Impreza WRX STI
    2007 Subaru Impreza WRX STI
    WRX STI Limited
    2007 Subaru Impreza WRX STI Limited
    WRX Sedan
    2008 Subaru Impreza WRX Sedan
    2009 Subaru Impreza WRX Sedan
    2010 Subaru Impreza WRX Sedan
    2011 Subaru Impreza WRX Sedan
    2012 Subaru Impreza WRX Sedan
    2013 Subaru Impreza WRX Sedan
    2014 Subaru Impreza WRX Sedan
    WRX TR
    2006 Subaru Impreza WRX TR
    2007 Subaru Impreza WRX TR