McCulloch Mc 75  ... 1964 Bore 2.250 ... Stroke 1.835 ... Displacement 7.29

Block part number ........................................................47873b Fixed head ...................................................................no Copper o-ring head gasket ...........................................no Flat alloy head gasket .................................................yes Large PTO bearing (pn 6204) ......................................yes Oilier mount nub .........................................................yes Bolt-in transfer port cover ...........................................no 3rd port intake ............................................................no 2 Finger ports intake port ...........................................no Factory 9  port  transfer ports .....................................yes Machined recess for rod bolt clearance .....................no Cast-in recess for rod bolt clearance ..........................no Ribs in exhaust port ...................................................no Recess for square exhaust gasket ..............................no Crank PTO thread L/R hand ....................................... R/H Chrome or painted shrouds........................................ chrome

Mc 75 No Model no ... no serial prefix IPL 47898 Owners Manual 47838a Production Period 1/64 to 3/65