Eagle crank
If the cost is under $1200, it's imported. The differences aside from minor things like the diameter of the radius and sizes of counterweights are the final machining/finishing. Callies Dragonslayers are thier cheap line of forged, and they finish machine the cranks. I believe K1 also does this. Ohio is an importer but I believe they finish them or at least inspect them prior to shipping out. Scat/MP, Eagle, 440Source all have the finish work done overseas, which is where MOST of the issues come from as the quality control is not very good.
What do the mating surfaces of the main caps and block look like? Can you post a pic? What was the apprx horsepower?