How many different Flathead briggs?

[GWGAllisfan]

How many designs of single cylinder horizonal briggs engine were there? I mean in the modern era. i found an 11 HP horizonal motor for sale, but it seems to be quite a bit smaller than the 243431 in my B-10 or the (Inoperative) 23d in my Landlord. I was unable to get the modle number, although I hope to be able to get it soon.

[BLT]

The aluminum horizontal, single cylinder, shaft engine stopped at 11 HP, I think and from there up twin cylinders took over. The smaller design of the aluminum block comes from the oversquare design, larger bore then stroke. The drawback is the oversquare engines were never a lugger at the lower RPM's compared to the undersquared cast irons. If you are thinking to use one of those to replace a cast iron model, I would advise against it. There are no adaptor pieces to connect the driveshaft to the BGB for starts.

[AC808]

Funny you guys should mention this...A friend of mine just bought a 66 Landlord that has a motor similar to what you described...ill have to look at how its put together...

[GWGAllisfan]

I always keep hoping i'll come acroos one of those rare old motours. Around her it always seems to be hard to find them. Anybody out there ever re-powered a B-10 or landlord 101 with anything other than a cast iron briggs? Preferable bolt-on not "big hammer and welder" type?