I may be wrong on the name of the grouping, just know its the fist two numbers of the last number grouping is the year.
This is a new one on me. The first 2 of the CODE is what tels the year. This engine doesn't have that.
There is no code in this number.
I'd lay money it wasn't built in 50. They weren't using that style of model numbering in 50. It would have been a straight model 14. This numbering style started in the late 50's. I've never seen or heard of a way to date these series of engines. Seems the code system didn't start until later 60's. If there is some evidence of the type being used for a date, I'd like to see it. The model 6 and 6s is easy to date. There is a chart here http://asecc.com/data/briggs/ There is a lot of info for early Briggs there but you won't find a list for the above engine. there is a chart for generalization of year ranges some models
Edited by wvbuzzmaster, December 13, 2014 - 09:41 PM.