MTFCA Forum

Yesterday I was pouring about a dozen 4th mains to bore out. I came across about 3 that had no oil hole in them. Were these early ones before Ford found out they needed the oil hole?
Think I have seen one more that I remember.
Inquiring minds want to know. Dan

Dan:
i have poured several hundred ball caps ( 4th main) ... i have noticed 4 common variations ... no oil hole , 1 oil hole ( some of which had Ford embossed on spherical section ) , 2 oil holes and 4 oil holes ... the only ones with "Ford" embossed were the 1 oil hole ... possibly genuine Ford replacements for dealer use?gene french