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Old 06-05-2010, 08:02 PM   #11
Bill Steiner
Senior Member
 
Join Date: May 2010
Location: Texas
Posts: 263
Default Re: 312 Y-block valve lash problems

I think it is the adj bolt or rocker arm. Not that it has any thing to do with it but I remember that the 312 adj to .019. I looked in my old manual and it said .019 hot , both intake and exhaust. Bill
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