Agree, maybe not for break-in but will let me see if new rear main seal is holding, oil pressure, temp idle, how it runs and sounds. I flushed this motor when I got it - laid over some on driver side. Much gunk did come out of the driver rear coolant hole dump. I will report back on running temp.
Your radiator looks like the one in my 1970 442.
Last edited by 42465967; 12/30/2018 3:05 AM. Reason: words
