standard 4.2 1946Howdy, I have a CHAMPION BLUE RIBBON serial # 1J108110 was wondering about year and displacement thanx![]()
I have a complete break down parts list with pics of those motors if you would like them. from 1946 to 1950. Scott-Atwater made them. Your right FR those 1J motors made from 46-48 supposedly according to my reference chart but were in the ball park.brim-buster, just wondering, were you able to determine the year by the serial number? Anyhoo, troller, here are the specs for a 1J, 1947-49, probably similar.