Yup. I ran into this on my tiller that I wanna swap engines on. Just as you aren't going to be using your 1st choice of engine on this machine, I found an alternate "plan B" engine to put into mine so that I wouldn't have to re engineer any belt lengths or clutch/idler pulley. This tractor came to you with no engine at all, right? I don't have either a cast iron Tecumseh nor a cast iron Briggs here to compare, but roper did use both in that chassis over the years, I have worked on both versions over the years but at the time no engine swapping was needed. I wonder what the difference in crank height between the tec and the Briggs like would have been used on that series would have been? Or the difference in pulley setups between those? I used to know that but for the dam CRS thing
As I remember, a Kohler crank centerline is lower than the cast iron Briggs was. Even with the taller 2 qt sump. Don't remember the relationship in crank height between tecumseh and Kohler.. I think they all came with the same 4 bolt holes and same bolt pattern between them among the brands on the back of the block to bolt a clutch or whatever mount brackets may have been necessary for about anything.
