Allis-Chalmers M7 Restoration

Iowa couple tackles restoration of rare 1944 Allis-Chalmers M7 snow tractor

The M7’s flue is shown here in the up position.
The M7’s flue is shown here in the up position, allowing the pre-heater to keep coolant warm in frigid temperatures. Air forced over the hot engine manifold heated the passenger compartment.
Bill Vossler