actually i´d say it´s a 3.9 Cargo.
the Marmons had other embossed writings on the bellhousing and a pad to mount the rebuild plaque. plus i have never seen the writing on the back of the engine center part above the bell housing. this is where the marmon had it´s oil filter and more like Cargo...
What Mart said, plus:
i did use a 59ab pan and starter but kept french clutch and flywheel for starting. Works ok but this is heavy stuff as it is a 11" clutch.
I didn´t find domed pistons in my engine (2. over rebuilt in 1996) and had no clearence issue with navarro heads. But they did this...
i need to grab out this old thread as i´ve got a question concerning using a pcv-valve on a french flathead.
Actually i´m not sure which system it uses 59ab or 8BA.
the french ones have an 59ab-style breather in the back of the intake, no inlet on the pan (like the 59ab) and a 8BA-Style road...