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Old 10-08-2012, 05:51 AM   #5
alcoolaid
Scooby Guru
 
Member#: 134949
Join Date: Dec 2006
Chapter/Region: VIC
Location: Vancouver, BC
Vehicle:
'07 SWP STi
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Built a few engines using oem gaskets, 29 psi no problems. Went cometic on most recent build and pushing coolant at 25psi. I'm not the only one too. Going with cosworth gaskets now. There's an article on motoiq comparing actual clamping load on oem vs cometic vs cosworth.
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