Head Gasket Bolt Size

Fuddy Duddy

Well-known Member
Looking to order a head gasket from the parts department here. On
a '59, 801 seems there were two sizes of head bolts used. 7/16
and 1/2". Any way to tell which I might have other than removing
one to see?
 

According to the parts book the changeover took place Jan1 1958. So if your serial number indicates 1959 it should be 1/2 inch.
 

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