i tried a search but kept getting a error message.im needing the size of the fitting that goes into the top for oil feed.i dont think its 1/8th.any one know where i can get one quick??

 

It's not 1/8 NPT, it's either 1/4 or 3/8 IF (depending on the make of the turbo) The best thing to do is go to the auto parts store and get the right size brake line. The hard line can be connected to a -4AN hose via a tube sleeve and nut. Observe my connection:



It goes from a preterminated NOS -4AN hose, to a -4AN male-to-male coupler, then a tube sleeve and nut holding the 1/4" hard line.

 

7/16ths-24 inverted flare