Massey-Harris 101 Super

Chrysler 3.3L 6-cyl gasoline

Bore × stroke

3.13 in × 4.38 in

Rated speed

1,500 rpm

Cooling

liquid-cooled vertical L-head

Notes

Original engine, used until 1940. With Twin Power engaged, the engine could run at 1800 RPM.

Chrysler 3.6L 6-cyl gasoline

Bore × stroke

3.25 in × 4.38 in

Rated speed

1,500 rpm

Cooling

liquid-cooled

Notes

Larger engine, used from 1940 on. With Twin Power engaged, the engine could run at 1800 RPM.

4-speed gear: Four gears (1-4) plus reverse (R) and belt (B). In fourth or belt gears, the Twin Power feature activated a cam on the governor that allowed the engine to run at 1800 RPM.