In answer to ques. 1- There never was a 261 car engine in the USA. They were used in Canadian Pontiacs, I'm not sure what years.
And concerning the "original 261 that came in my 62 1/2 ton"- I don't think so if it was US mfg. I don't know about Canadian on that one.
You don't disclose your location. Are you hiding?


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.