Up for sale is a set of 16 Solid rocker arm screws with nuts. I'm listing two different kinds one solid and one with a oil hole. You need to know which one you need and I'm giving you the measurements to check with you old ones.Length 1-9/16 long
Diameter 3/8-24
Hex on nut 9/16
1930 - 1952 Buick straight 8 263 248 320
1953 Buick 40 series only straight 8
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