FU Engine

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The FU engine came on the "GFU", "FU" and "MPG" cars (USA-market B210 and B310 fuel economy champion models). F means Five-speed. G means GX trim (not dual carb). U means USA (FEDERAL, except California).

1977 B-210 50 MPG (US gallon = 3.78 liter) 21 km/liter

• 0278-0780 HLB310FU 4-dr sedan, DX, A14
• 0278-0780 HLB310RFU 2-dr sedan, DX, A14
• 0278-1179 KHLB310FU Coupe, DX, A14
• 0278-1179 WHL310FU Wagon, DX, A14
• 1279-0780 PLB310RSFU 2-dr sedan, Standard, A15
• 1279-0780 KHLB310FU Coupe, DX, A15
• 1279-0780 WPLB310FU Wagon, DX, A15
• 0880- PLB310FU 4-dr, DX, A15
• 0880- PLB310RFU 2-dr, DX, A15
• 0880- HLB310RSFU 2-dr, STD, A14
• 0880- KHLB310FU Coupe, DX, A14
• 0880- WHLB310FU Wagon, DX, A14

65HP - Economy A14 Engine. This engine got 47 MPG in the B310 with 5-speed tranmission.

-1980 Cylinder head features:

• quench wedge chambers
• round 28mm (?) lowered ports
• Has round intake ports (like the A12 head). It has two small coolant holes below the intake ports, to provide heat for the intake manifold.
• Unique Thermostat housing

1981-1982

• quench head
• smaller dish in piston
• shrouded intake valves
• change from round ports to Small Oval

• Standard Datsun 1200 style cooling fan (not the larger typical A14 style)