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Old March 20th 2015, 11:19
70Turbobug 70Turbobug is offline
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Join Date: Oct 2009
Posts: 545
Hi Francelle,
The O-ring won't leak or harden,because it is silicone based. There is no movement in that area. They are 2 piece mainly to achieve more cooling. An individual head provides more equalized clamping pressure due to the offset type 4 studspacing. To achieve cooling like that,there is no other possibility because there is no other way to machine it.

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