Rocker Stud Sizes
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Rocker Stud Sizes
Hi, I have a 1977 F-100 with the 300 CID 6. The head has 3/8 rocker studs with locking nuts which stay where you adjust them. I need a valve job after half a million miles and I came across another head that looks just like mine except it has 5/16 rocker studs and the nuts are not self locking, there is an additional locking nut. Can anyone tell me if this is pre 1977 or post 1977? I cant read the casting number to tell what year it is but I belive it is a 70's vintage because it is adjustable. The rockers look the same.
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Brian LM
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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May 5, 2013 09:02 PM
1982fordf100
Ford Inline Six, 200, 250, 4.9L / 300
2
Aug 28, 2006 05:18 PM
