The 1.1L EA61 and 1.3L EA62 engines had no cooling fan, only an electric fan on the small radiator cooled the engine. The 1.1L was shared with the Subaru FF-1 Star, however the 1.3L engine was unique to this model and the only Subaru engine to have rear-facing exhaust ports. Most 1972–73 models were equipped with the 1.3L EA62 engine and dual carburetors was an available factory option. The transmission was also borrowed from the Subaru FF-1 Star.
EA61 1.1L OHV water-cooled flat-4
Displacement: 76 mm x 60 mm, 1088 cc
Power: 61 bhp (45 kW) at 5600 rpm, 65 ft⋅lbf (88 N⋅m) at 4000 rpm with 9:1 compression and two-barrel carburetor
EA62 1.3L OHV water-cooled flat-4
Displacement: 82 mm x 60 mm, 1268 cc
Power: 80 bhp (60 kW) at 6400 rpm, 73 ft⋅lbf (99 N⋅m) at 4000 rpm with 9:1 compression and dual two-barrel carburetors
