Cosworth High Performance Head Gasket .78mm - Subaru STI 2008+
Manufacturer Part # 20010706
- 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.
- Bore: 101mm
- Thickness: .78mm
PRICE IS PER GASKET! TWO GASKETS ARE REQUIRED FOR A COMPLETE SUBARU MOTOR
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Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
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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.
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QUESTIONS & ANSWERS
Q: WHAT IS THE PROPER HG TO USE Pumbaa 10 months agoAnswer
Hello i have a 2006 WRX wagon. I am doing an engine swap. the motor is a EJ257 from a 2011 STI. The heads are the D25 heads from my 2006 WRX. what is the proper HG to use? what thickness would be the best? what bore diameter will I need? should I get a HG for the 2011 block or the 2006 heads?
A: For your hybrid set up that you are doing you are going to want to match the block so you will want to get STI headgaskets. The rest depends on what you are going for. Sizing plays a huge role in compression ratios so you will need to consult a tuner before purchasing or setting up your block.
Tyler A. 10 months ago