Hello again. I am now putting my 270 GMC together and I have come up a another problem with the oil system. The factory oil lines have a type of taper furrule on a small steel line. A thread all there own. It goes from the lower part of the block from a brass fitting the screws directly into the block. One goes up to the head for oiling the rockers. It is a small line and is all steel. That one is good. The others are rubber and go to the oil filter. I want to replace the oil lines to the filter housing. Trouble is I can not find anybody to duplicate this type of line. I have been to hydraulic specialist to regular parts house. I could covert them all to pipe if it weren’t for the smaller steel line to head with the special fitting to the head. All this clear as mud😀😀. Anyway does anyone know is there is an after market supplier that make GMC oil lines? Chevys are different and pipe thread will not work. Thanks. Davie.

Last edited by Davie Boy; 11/11/2023 2:33 AM. Reason: Left something out
1957. GMC F350