Thread: Zetec Turbo St170/Blacktop Head Gasket
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Old Jun 29, 2018 | 12:03 AM
  #13  
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Jackstrath
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From: Aberdeen
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iirc it’s about 8:1,

just checked the garage and it is the 1.6mm I use

think the st170 gasket is 4 layer and 1.4mm thick, RS gasket is 0.6mm only 3 later
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