silverado vs z06
#22
did some research last night... apparently it's not "recommended" to exceed 50 psi unless you o-ring the heads... which costs $300. If you get headwork done a lot of the shops will o-ring them for free while they are at it. This applies to the cummins, I didn't look into the duramax and international.
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Braineack
Insert BS here
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06-17-2008 11:47 AM