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Cosworth High Performance Head Gasket 1.1mm ( Part Number:COS1 20000916) Cosworth High Performance Head Gasket 1.1mm ( Part Number:COS1 20000916)

Cosworth High Performance Head Gasket 1.1mm - Subaru EJ25 Turbo Models (inc. 2004-2007 STI / 2006-2014 WRX)

MODEL # COS1 20000916
Manufacturer Part # 20000916

$79.00

24
hours
In stock! Ships same day
Free shipping on all orders over $200.00!


Buy as a package deal and save:
Cosworth 99.5 Motor Build Package 04-07 STi / 06-14 WRX ( Part Number:COS1 99.5KIT2)
Cosworth 99.5 Motor Build Package 04-07 STi / 06-14 WRX - Subaru EJ25 Models (inc. 2004-2007 STI / 2006-2014 WRX)
As low as $2,885.99
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Description

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: 1.1mm

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


Brand: Cosworth
Bore Size: 101mm
QTY: 1
Thickness: 1.1mm

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

5

5 STAR
100%
4 STAR
3 STAR
2 STAR
1 STAR
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RallySportDirect.com Reviews:
Verified Purchase

2009 WRX 265 head gasket issue
2009 T-Rex 5 years ago
A must if you are running a higher boost than stock. The 2009 WRX is known for these head gasket issues. Let a pro do the head job.
Comment

  • Q: Surface finish   Fr9ford 11 months ago

    Answer

    What is the proper cylinder head and block sealing surface RA value required for these head gaskets?


    • A: Thank you for the question. The nitrite rubber helps our gaskets seal better compared to conventional non-coated MLS gaskets, however we suggest to NOT exceed 50 microinches RA. The lower (smoother) , the better.


      Kirill C. 11 months ago
  • Q: Better than thinner gasket?  PLN 33 2 years ago

    Answer

    Would this thicker gasket seal better than the other thinner cosworth gasket? Since other after market gaskets like grimmspeed's exhaust gaskets are thicker than OEM (7 layers as opposed to 3).


    • A: Thinner or thicker head gaskets will not have a difference in layers, it is the thickness of the metal gasket to provide clearance to the pistons from the valves or to alter compression slightly depending on the setup needed.


      Stevens Henager 2 years ago
  • Q: Advantages?  Andrew Jarvie 3 years ago

    Answer

    What is the benefit of going with a thicker HG?


    • A: A thicker head gasket can decrease compression on a standard head and block. If either of these have been machined down you can make up for the loss of material with a thicker gasket as well to keep a close to stock compression.


      Nick S. 3 years ago
  • Q: Size  04sti808 4 years ago

    Answer

    Will this gasket fit a stock set of heads? Will I need a different gasket if my heads are going to be machined?? Thanks!


    • A: This will fit stock heads with no issues on vehicles that are listed in the confirmed application listing.


      Kirill C. 4 years ago
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WRX STI Limited
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