Major Overhaul Kit for Ford New Holland. Fits Ford Engine 401 Fits Models 8600, Tractor H48, Excavator A64, Wheel Loader 8000, Tractor 8200, Tractor 8400, Tractor Fuel Type Diesel Engine Specifications 401:BSD666 Natural Aspirated, Stroke: 4.400″, Bore: 4.4007″, Fuel: Diesel, Cylinder: 6. 401Technical Notes for Ford 401 Engine parts for Ford Major Overhaul Kit Engine 401 # of Cylinders 6 Oversize Notes Oversized main, conecting rods bearings, piston rings, pistons and liners are available.