Bolt Questions
#3
Bolt length is indicated by the thickness of the flange. Several manufacturers (Moroso, Arp?) are making locking header bolts,there is some kind of an insert that locks the bolt in once tightened,advertised to end the repeated retightening of header bolts. If your primaries are over 1 5/8 on some headers it is very difficult to get a wrench on a hex head bolt making the 12 pointers a little easier to work with.
Ron
Ron
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dar322
Corvette C3 Forum
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12-03-2007 08:52 PM