McCulloch Mc 10 ......... 6-1959 / 2-1961

Bore 2.125 ... Stroke 1.50 ... Displacement 87cc / 5.3 cu in
Block part number ........................................................ ?
Fixed head .................................................................. no
Copper o-ring head gasket ...........................................no
Flat alloy head gasket .................................................yes
Large PTO bearing (pn 6204) ....................................... ?
Oilier mount nub .........................................................yes
Bolt-in transfer port cover ...........................................no
3rd port intake ............................................................yes
2 Finger ports intake port ...........................................no
Factory 9  port  transfer ports .....................................no
Machined recess for rod bolt clearance .....................no
Cast-in recess for rod bolt clearance ..........................no
Ribs in exhaust port .................................................. yes
Recess for square exhaust gasket ..............................no
Crank PTO thread L/R hand ....................................... R/H
Head shroud .............................................................  ?
Flywheel shroud .......................................................  ?
Mc 10 No model no or seial prefix
IPL 48607
Owners Manual 486618
Production Period 6/59 to 2/61