Thread: 302 cyl head print (needed!)

Tweet

Originally Posted by Louey

Is this what you want ?

from the center of a bolt hole on the right side of the port hole to the center of the bolt hole on the left side of the port hole is 2.0000'' center to center the you subtract the width of the port hole which is 1.3200'' they are round to the nearest 4th decimal place so the precision = .01 or ten thousants so 2.0000'' -1.3200'' = 0.68" divided by 2 because there are 2 spaces one on each side of the port hole from the edge or the port hole to the center of the bolt hole both sides so 0.68"/2=0.34" so from the edge of the port hole to the center of the bolt hole is 0.34" both sides