Nissan J Engine
Datsun 520 Truck was produced from 1965 to 1968. The minor model change came in 1968 with the updated 521. The 521 and L521 continued to use the J13 engine until the Premium-engined PL521 was introduced for North America.
Model Variation
520 Truck L520 Truck for LHD (left-hand-drive) L520U Truck, LHD for USA G520 Long wheelbase (long body) Truck U520 Double-seat Pickup (2-dr "double seat" with back seat, 1-piece body/bed) V520 2-dr Van (wagon)
520 with curved corner turn signals
File:400px-1965 Datsun 520 Utility (8298187358).jpg
520 late with quad headlights
521 with flat hood, font-facing turn signals with side markers
V520 looks a bit like a 410 station wagon but is based on the 520 truck platform. This one is from Norway
521
521 G521 Long Body Truck (long wheelbase) N521, GN521 (J15 engine) PL521 (L16 engine) U521 Double-seat pickup 2-dr 1968-1969 UN521 1970 N-engined V521 Van 2-dr 2-dr 1968-1969 VN521 1970 N-engined
521
V521 Van
UN521 Double-seat Pickup | 521 "1300"
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USA-spec L521 with 1300 engine
[[521#28772|
]]
Headlights
1965 520 2-eye 520 G520 Not Available U520 V520
2-eye 1965-1966 520 corner lamps 4-eye 1967-1968 520 corner lamps 4-eye 1968-1972 521 front & side lamps
520 early - corner lamp beneath headlights
520 late - quad headlights (standard 5-1/4" round lamps)
521 - flat bonnet, front facing parking lamp
United States Market
Canada sold US-spec pickups.
USA 520
USA 521
Wheelbase
520 2530 mm (Truck 520, Pickup U520, Van V520) G520
521 2530 mm G521 2770 U521 2530 V521 2630
Track
520 Tread * Front: 1250 mm * Rear: 1267 mm
L521 * Front: 1267 mm * Rear: 1260 mm
Length
521 is 45 mm longer than equivalent 520 variation (SWB, LWB, D/C or Van)
Overall length (not including rear bumper)
mm 520 4245 w/o rear bumper G520 4635 w/o rear bumper U520 4300 including rear bumper V520 4300 including rear bumper
521 4290 w/o rear bumper G521 4680 w/o rear bumper U521 4345 including rear bumper 4270 without V521 4345 including rear bumper
Front overhang - engine bay is about 3" longer in 521
520 637 mm w/o bumper 521 710 mm with bumper
Fuel Economy
All models (520 & 521: Truck, Long Body, Pickup, Van) * J13: 15.5 kg/l * J15: 14.5 kg/l
Weight
520 960 kg U520 1035 V520 1055
521 975 kg G521 1010 U521 1050 V521 1070
Wheel & Tire
521 - 14" * front 6.00-14 6 ply LT * rear: 6.00-14 8-ply LT U521/V521 * all 5.60-14 6 ply LT
Gearing
Floor Shift
521T (floor shift)
F4W63 1st 3.657 2nd 2.177 3rd 1.419 4th 1.000 Rev 3.638
J13: 4.875 final drive J15: 4.625 L16: 4.375
Remote Shift
521 (column shift)
R4W63 #1 1st 4.243 2nd 2.558 3rd 1.589 4th 1.000 Rev 4.367
Final Drive 4.625 N521U/GN521U, NL521/GNL521 4.375 UNL521, VN521
Remote Shift Wide
521 (column shift)
R4W63 wide ratio 1st 5.000 2nd 3.014 3rd 1.685 4th 1.000 Rev 5.146
Final Drive 4.875 521U/G521U, L521/GL521 4.625 U521/UL521, V521U/VL521
Load Capacity
520U/520/L520/L520T 2205 pounds export models
520 1000 kg U520 6 passenger + 400 kg V520 3 passenger + 500 kg 5 passenger + 300 kg 521 3 passenger + 1000 kg G521 3 passenger + 1000 kg U521 6 passenger + 400 kg V521 3 passenger + 500 kg 5 passenger + 300 kg PL521 2 passenger + 454 kg (1000 lb)
Transmission
JDM 521 Truck did not come with Floor Shift option. -T suffix indicates Floor Shift 4-speed.
R4W63 Remote Shift (column shift) 4-speed 521/L521 G521/GL521 N521/NL521 N521U/GN521/GNL521
F4W63 Floor Shift 4-speed L521T/NL521T GNL521T U521/UL521/UNL521 V521/VL521/VNL521 PL521TU/PL521TN
Engines
520 J13 engine 521 J13 & J15 engine L521 J13 engine PL521 L16 engine
J13
bore: 73 mm stroke: 77.6 mm capacity: 1299 cc compression: 8.2:1 Horsepower: 62 PS @ 5000 rpm Torque: 10.0 kg-m @ 2800 rpm Camshaft: 14-50-52-12 Valve clearance: 0.014 inch
J15
bore: 78 mm stroke: 77.6 mm capacity: 1483 cc compression: 8.3:1 Horsepower: 77 PS @ 5200 rpm Torque: 12.0 kg-m @ 3200 rpm
L16
Same as Datsun 510. L16 started 1969-1/2. All 1968 521 had J13 engine, as well as early 1969.
To fit the L16 drivetrain Datsun made these changes:
- changed motor mounts
- changed transmission mount
- changed 3rd frame crossmember
- smaller, simpler idler arm
Early 521: the J13 sheet metal for the radiator is easy to remove and allows you to drop L-series engine into, it even has the holes for the L series radiator install. Engine mount brackets and isolators differ as does rear tranmission mount bracket. These brackets bolt to the frame.
Taillights
1966 two-section 1967-1969 three-section 1970-1972 three-section
1966 Canada (Red + Amber) 1966 USA (Red + Red) 1967- Canada (Clear + Red + Amber) 1967- USA (Clear + Red + Red)
reflectors to 0968 From 1068 CAN From 0969 USA front USA rear
Side Markers, front & rear from 1069
license lamp -0968 1068-
Build Dates
1965 April: 520 introduction 1966 October: 4-eye (4 headlamp) introduction 1968 May: 521 minor change introduction 1969 July: L16 engine introduction for PL521 (USA) 1972 Feb: Datsun 620 introduction
USA Model Years
1966 Apr 1965 1967 Oct 1966 - quad headlights 1968 Sep
1969 May 521 introduction 1970 April L16 introduction 1970 model year Oct 1969 1971 1972 1972 March 620 production, June introduction
Side Markers
- 520: integrated with turn signal lamps
- 521: separate from turn signals
ASSY-LAMP, PARKING & TURN 26120-14800 LH (WHITE/CLEAR) JAPAN/CANADA -6804 26121-14800 RH (WHITE/CLEAR) JAPAN/CANADA -6804 26120-14900 LH (AMBER) USA -6804 26121-14900 RH (AMBER) USA -6804
521 ASSY-LAMP SIDE FLASHER 26160-B0101 2 (RH & LH) 6805- 26161-25700 LENS
Badges
grill emblem "D"
"D A T S U N" 65812-14800 EMBLEM-hood JDM 6510-6709 USA https://ratsunstorage.s3.us-west-1.amazonaws.com/monthly_2021_01/SmartSelect_20210126-063712_Chrome.jpg.aac7f34be44f61924cf315ca4495fd61.jpg
hood emblem -0967 65812-14800 short vertical "D" 1067-0468 65812-28000 6805- 65812-B0100 long vertical "D"
Body Side -0468 63805-14800 "Datsun 1300" 0568- 63805-B0100 "Datsun 1300" 63805-B2000 "Datsun 1600"
520 early Badges
Hood emblem 1966-1967
with accompanying Grille badge
https://live.staticflickr.com/341/32174645430_af0cdb12fc_b.jpg
520 Late Hood Badge
1967 to 1968-1/2 hood badge alone
521 Hood Badge
Tall 'D'
https://i.postimg.cc/Gp2f0j3d/DSCN0074.jpg
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