Having issues with identification. I thought that the early engines were a D3400 with a 3 3/4" bore. What I have is a 4" bore? Are the pistons and liners interchangeable between the D311 and the D3400? Help please Need to get some liners and not sure which way to go.
The J model D2s were all originally 3-3/4 inch, but there was an overbore kit available long ago which could make it 4", also someone could have put a U model engine in it, best post some pictures.
The liners are not interchangeable without significant machine work.
So either in really lucky or have no luck at all. Just took apart 3J788 to find it also had 4" bore pistons in it.. Think Im going crazy.
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