New one on me!
History - '64 389 78XW I acquired 40+ years ago. PO mods include tri power, 280 ISKY cam and valve guide seals.
I'm finally getting around to rebuilding it to replace the '66 in my '64 GTO. I have no history but upon disassembly discovered the heater hose connecction at the timing chain cover had a short hose with a plug in it. A pump flange with a 3/4" female pipe fitting is attached to the rear of the left head at the freeze plug.
I can think of no reason for this. Any ideas?
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