hello one an all, my first time here,hope to get some answers to my problem. atlas head no holes for over-head oiler tubes, how did they ,the early ones get oil up top,or should i ask what do i do now? i've had this 72 combat for 37 years and am trying to get by useing the older head! any suggesttions any-one? please help i really need to get back in the wind and don't have the big bucks to send my old head off,nor the machines too do it my-self , Mr.Muck

The early heads from an atlas have 5/16 studs and command barrels are 3/8".IMO false economy and a fairly undesireable outcome will be your result You should study my NHT head page http://atlanticgreen.com/nhth.htm 750 commando heads are generaly dirt cheap....1/2 the price of 850 heads