Canadian 340 block 0R244472 (SSM area?)

What's the vin number? I'm looking for my numbers matching 340 for my 1970 FM3 4-speed swinger also. It was sold new in Moorhead Minnesota.
I bought one of those in fall of 1970. I blew it up before the Five year 50,000 warranty period expired.
FM3 that's Pink right? Mine was pink too, Lemee see if I can still remember the Vin;
LM23H0Rxxxx321200; (was there an M29 in there?) Nope but, almost, that was 54 years ago. Some numbers never melt away. I still have 55 year old phone numbers in my head. But ya think I can remember even one out of six of my grandkids birthdays or even the birth-months? Nope. Well maybe one; the youngest is coming two around Christmas.