From what I understand the engine is not stock, I believe it is a 235 if that makes any difference. I think the transmission and everything else is original/stock. I'l be using a more modern frame and engine in my build so I haven't really done any research into the old straight 6's. Anyhow thanks for the info Tim!
Here's todays work, not much just tacked the front drivers side fender mount piece onto the cab. Took a while to get it formed to my satisfaction.
Drivers Side Cab fender Mount Piece 
