Crankshaft kit vendors
 

Any vendors out there offer a crank shaft kit?

What do you mean by kit? A stroker? Rotating assembly? I think FM was the only company that offered a stroker crank as far as I recall, but google is your friend here. People have done like 500+ on the stock forged crank, not sure what you've got in mind but the stock crank is pretty stout.

Maruha does as well