Nissan Y engine

The Y engine is a family of V8 engines designed and produced by Nissan between 1965 and 1990 for limousines. The Y engine was replaced in 1990 with the Nissan VH engine.

Y40

The Y40 was a water-cooled OHV V8 engine produced for the Nissan President limousine between 1965 and 1973. It displaces with a bore and stroke of. It has 16 valves and a 4-barrel carburetor and 9.0:1 compression ratio. It produces at 5000 rpm and at 3200 rpm.
This V8 engine was developed before the merger with Prince Motor Company and was not directly related to Prince's W64 V8, used exclusively in the Prince Royal limousine.
Applications:

1965-1973 Nissan President
1965-1971 Nissan Cedric Patrol Y130 series

Y44

The Y44 is an OHV V8, 16 valve, 4 barrel down draught carb engine produced for the Nissan President and since 1975 used electronic fuel injection. It produced at 4800 rpm and at 3200 rpm. In 1975, Nissan introduced its emission regulation technology called NAPS.
Applications:

1974-1989 Nissan President