Need a D-400 engine for a lawnboy

[Anonymous Poster]

I recently found an old lawnboy "deluxe 21" model 8256. the mower is from around 1980. Really nice shape with a bad engine. Bearings are gone and the piston is scored. Looks like lack of oil. Has the D-400 engine. Anyone have an engine or shortblock? Would really like to get this one going.
Thanks! Doug