Posted 12/14/2015 18:47 (#4959657 - in reply to #4959643) Subject: RE: '68 4020 Diesel Block Heater
The block heater information I've seen uses a special T at the block drain valve and a hose to the heater tank on the right side and the outlet of the heater goes through a hose to one of the threaded plugs on the right side of the head. There was another that mounted in the front of the oil pan.
'68 4020 Diesel Block Heater
