Nissan Y engine

Nissan President Nissan Nissan UD engine
Nissan Y engine
Y44E engine
ConfigurationNaturally aspirated V8
Displacement4.0 L (3,988 cc)
Cylinder bore92 mm (3.62 in)
Piston stroke75 mm (2.95 in)
ValvetrainOHV 2 valves x cyl.
Compression ratio9.0:1
Fuel system4-bbl. carburetor
Electronic FI (since 1975)
Fuel typeGasoline
Cooling systemWater-cooled
Power output195–200 bhp (145–149 kW; 198–203 PS)
Torque output323–343 N⋅m (238–253 lb⋅ft)
SuccessorNissan VH engine


The Y40 was a special water-cooled OHV V8 engine produced for the Nissan President Limousine between 1965 and 1973. It displaces 4.0 L (3,988 cc) with a bore and stroke of 92 mm × 75 mm (3.62 in × 2.95 in). It has 16 valves (two per cylinder) and a 4-barrel carburetor and 9.0:1 compression ratio. It produces 195 bhp (145 kW; 198 PS) at 5000 rpm and 237 lb⋅ft (321 N⋅m) at 3200 rpm, a high point for Nissan at the time.

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.

This engine was used in the following vehicle(s):


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 200 hp (149 kW; 203 PS) @ 4800 rpm and 343 N⋅m (253 lb⋅ft) @ 3200 rpm. In 1975, Nissan introduced its emission regulation technology called NAPS (Nissan Anti Pollution System).

This engine was used in the following vehicle(s):

The Nissan Y engine was replaced in 1990 with the Nissan VH engine.

See also