Discussion in 'Engine & Performance' started by davbell22602, Dec 15, 2011.
Does anybody know what the inside diameter valve guide spec supposed to be on a 390 cylinderhead?
Does anybody know the diameter spec for 390 pushrod?
Year of motor? Ford changed the size of the rods 63-70s
The according to the casting code on the block its a 67 but its in the 67-69 era. I have 2U stamped on the one crank journal. So i'm thinking it was in a 68 ford car or truck.
a 1968 390 it had a ball size 3/8, shaft size 5/16. Hope this helps.
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