Wrenchman, do you have a cylinder head for the engine? I am presuming it has to be an OHV arrangement from the look of the block.
If one goes searching for pics of 1920s inline 6 cylinder engines, you can find a small handful that have cylinders which bolt to the crankcase. However, nearly all of them were flatheads. The Buick might have been the only OHV, removable cylinder, arrangement that I could find. There might be others, that’s just all I could find that reasonably resembled yours.
I thought maybe you had something even more oddball like: Diamond T, REO, or such. None of those theories turned up anything quite like what you have there. Given GDad’s lead, I think I’d chase the Buick engine theory until you disprove it.
Side note - I’m sure some good documentation of these large trucks from that era exists. But I suspect the “vintage” of the dudes, means that more of it is on paper than on the interwebs. Finding just the right guy(s) with specific knowledge of that specific truck, is gonna be a huge help.
Last edited by JW51; 03/21/2024 5:41 PM.
