1933-1934 Exhaust Manifold needed

[TodFitch]

Same exhaust manifold was used up to at least 1937. Casting number on the underside has a different number after the dash and different casting date code but that is about it. Might be used later too but I know the '37 because that is what I replaced my cracked exhaust manifold on my '33 PD with.

[33incanada]

Hi Folks      Any one know when the exhaust manifold changed. I have a 34 PF engine in a 33 PD and every time i fill one crack another appears.   Need to find another exhaust manifold ???  Any ideas?