Hum, a spot weld. I don’t recall seeing any that way, in that year span.
I do know the 340/440 trap door (single snorkel) air cleaners, the rear vacuum motor was spot welded in.
The good news is you can drill out the weld (they make spot weld drill bits for that very reason (and I suspect Deconstructor Jim uses them as well)) and/or take a chisel and separate the two parts – just don’t get in any hurry.
Some of those vacuum motors twist on/off. Look inside of the snorkel and see if it appears that way.
BudW
I do know the 340/440 trap door (single snorkel) air cleaners, the rear vacuum motor was spot welded in.
The good news is you can drill out the weld (they make spot weld drill bits for that very reason (and I suspect Deconstructor Jim uses them as well)) and/or take a chisel and separate the two parts – just don’t get in any hurry.
Some of those vacuum motors twist on/off. Look inside of the snorkel and see if it appears that way.
BudW