Nissan P engine

The Nissan P engine is a large overhead valve, inline-six cylinder engine manufactured by Nissan Diesel Motor Co., Ltd. from 1959 to 1983 and used in light-duty trucks by Nissan, as well as in the Nissan Patrol. It replaced Nissan's older, sidevalve engines with which it shared its dimensions.[2] This series of engines were based on the pre-war Type A engine, which was a license built Graham-Paige design.[1]

Nissan P engine
Overview
ManufacturerNissan Motors
Production1959-1983
Layout
ConfigurationInline-6
Displacement
  • 3.7 L (3,670 cc) (NAK/NB)
  • 4.0 L (3,956 cc)
Cylinder bore
  • 82.5 mm (3.25 in) (NAK/NB)[1]
  • 85.7 mm (3.37 in)
Piston stroke114.3 mm (4.50 in)
ValvetrainOHV
Combustion
Fuel systemCarburetor
Cooling systemWater cooled
Output
Power output92 kW (125 PS; 123 hp)
99 kW (135 PS; 133 hp)
107 kW (145 PS; 143 hp) (after 1965)
Chronology
PredecessorNissan NC engine
SuccessorNissan TB engine

NAK

Introduced in 1950, this is a 3.7 L (3,670 cc) petrol inline six-cylinder engine which produces 75 hp (56 kW; 76 PS). This was directly derived from Nissan's pre-war A engine, a license-built Graham-Paige unit.

Applications:

  • Nissan 290 Bus
  • 1950 Nissan Patrol 4W70
  • 1951 Nissan Patrol 4W60
  • 1952-1953 Nissan 380
  • 1952-1953 Nissan 390 Bus

NB

Introduced in 1953, this is a 3.7 L (3,670 cc) petrol inline six-cylinder engine which produces 95 hp (71 kW; 96 PS).[1]

Applications:

  • 1953-1954 Nissan 480
  • 1953-1954 Nissan 490 Bus
  • 1955 Nissan Patrol 4W61

NC

Introduced in 1955, this is a 4.0 L (3,956 cc), sidevalve petrol inline six-cylinder which produces 105 PS (77 kW; 104 hp) at 3,400 rpm. Bore and stroke are 85.7 mm × 114.3 mm (3.37 in × 4.50 in). It was used in various buses and trucks as well as in early Nissan Patrols.[2]

Applications:

  • 1955-1959 Nissan 482 Truck[3]
  • 1955 Nissan 492 Bus[3]
  • 1955-1957 Nissan 580 Truck
  • 1958-1959 Nissan 582 Truck
  • 1955-1957 Nissan 590 Bus
  • 1958-1959 Nissan 592 Bus
  • 1955-1959 Nissan Carrier 4W72
  • 1956-1959 Nissan Cabstar E590
  • 1956-1959 Nissan Patrol 4W65

P

The P is a gasoline-powered, overhead valve 4.0 L (3,956 cc) inline six-cylinder[2] with 125 PS (92 kW; 123 hp) at 3,400 rpm initially. Bore and stroke are 85.7 mm × 114.3 mm (3.37 in × 4.50 in).[2] Later with 135 PS (99 kW; 133 hp), further modifications in 1965 increased the power to 145 PS (107 kW; 143 hp). Later variants were called P40, reflecting the engine displacement in liters (4.0). A variant especially for fire-fighting duties, with a stronger alternator, an engine block heater, and various other improvements, was called the PF engine.

Applications:

References

  1. Hara, Sadaichi (2018-10-01), ダットサン車の開発史 日産自動車のエンジニアが語る1939-1969 [Datsun car development history: Nissan Motor engineers talk about 1939-1969] (in Japanese), Grand Prix Publishing, p. 58, ISBN 978-4876873593
  2. Ozeki, Kazuo (2007). 日本のトラック・バス 1918~1972 [Japanese Trucks and Buses 1918-1972] (in Japanese). Tokyo: Miki Press. p. 84. ISBN 978-4-89522-494-9.
  3. Ozeki, p. 112
  4. Ozeki, p. 102
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