Re: L89 head bolt torque
Bob,
Stock L/89 head bolts used the washers. I investigated this a couple
of years ago for an L/89 project. I talked to a number of unrestored
L/89 owners ( NCRS.ORG ) and Jerry MacNeish as he owned an
original L/89 69 Chevelle. In every case, I found that
original L/89's used hardened steel washers under the head
bolts.
I can try to dig up that information for you. BTW, the
stock washers are still available from GM. If you think
about it logically, the washers keep the bolt seats from
getting badly marred during assembly.
Steve
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