The 6000 in the part number marks it as Ford because it's the basic part number for the engine assembly. The letter suffix denotes the engine it's used for, and I have no data on that. I believe that it would probably be for the flathead 6 cylinder engine that was used from 1941 to 1951 in both cars and trucks. An easy way to check would be to use a manifold gasket to see if the bolt holes line up.
There's a possibility that is a custom bracket. The KR Wilson adapters could be changed to allow the dealer to have it set up to work with what they were doing.
My 1950 or so catalog says the motor stand itself is a No. 835 and the portable (casters) base as a No. 744. The catalog photo shows a casting mark ( KRW No 744) on the side the portable base. The catalog also indicates 6000-BE denotes "KRW Motor Stand Engine Adapter for a 6 cylinder Ford.
Well in 1950 the no 835 was $46.25, the No. 744 base was $35.40 and the 6000-BE adapter was $15. So I would say you did pretty good....... I but I think you already knew that ..............I believe those go for big bucks.
That's a great looking stand Hotrod and an even better price. I see it is in the bright red color. Probably close to what was original on that stand. Has anyone else encountered one of these KRW stands in a dark forest green? Here are a couple pics of one I picked up recently and I think it came in the green color. No indication this is other than original paint. Ed.
I worked at the Ford engineering center for 35 years, and those stands were all over the place. Some had been modified, but they were still being used.