Grill Headlight Trim Rings For Datsun 620 Now Avalible!! Click Here For More Info

L16 / L18 / L20b

L16

Horse Power @ RPM

96 @ 5600

Ft. lbs. Torque @ RMP

100 @ 3600

Bore X Stroke

3.27 X 2.90

Oil Pressure

45 – 50 (PSI)

Piston Size

3.2671 – 3.2691 in

Compression Ratio

8.5:1

Cranking Comp

171 PSI

Block Height

265.9

Firing Order

1, 3, 4, 2

 

Motor
Year

Engine
Oil

Engine
Coolant

Idle
Speed

Ignition
Timing

Plug
Gap

Distributor
Air Gap

Dwell
Angle

1970-1972

5.0 qts

7.2 qts

700 RPM

10B

.033 in

.020

52

1972

5.0 qts

6.3 qts

700 RPM

7B

.032 in

.020

52

1973

5.0 qts

6.3 qts

800 RPM

8B

.030 in

.020

52

 

Valve Clearance

Intake

0.08 in.
0.20 mm

0.010 in.
0.25 mm

Exhaust

0.010 in.
0.25 mm

0.012 in.
0.30 mm
L18
Horse Power @ RPM 100 @ 5600
Ft. lbs. Torque @ RMP 100 @ 3600
Bore X Stroke 3.35 X 3.07
Oil Pressure 45 – 50 (PSI)
Piston Size 3.3451 – 3.3470 in
Compression Ratio 8.5:1
Cranking Comp 171 PSI
Block Height 265.9
Firing Order 1, 3, 4, 2

 

Motor
Year		 Engine
Oil		 Engine
Coolant		 Idle
Speed		 Ignition
Timing		 Plug
Gap		 Distributor
Air Gap		 Dwell
Angle
1973 5.1 qts 6.3 qts

800 RPM Manual

650 RPM Auto

 5B .030 in .020 52
1974 5.1 qts 6.3 qts

800 RPM Manual

650 RPM Auto

 12B .032 in .020 52

 

Valve Clearance
Intake
0.08 in.
0.20 mm
0.010 in.
0.25 mm
Exhaust
0.010 in.
0.25 mm
0.012 in.
0.30 mm

 

L20b
Horse Power @ RPM 112 @ 5600
Ft. lbs. Torque @ RMP 108 @ 3200
Bore X Stroke 3.35 X 3.39
Oil Pressure 50 – 57 PSI
Piston Size 3.3451 – 3.3470 in
Compression Ratio 8.5:1
Cranking Comp 171 PSI
Block Height 285.5
Firing Order 1, 3, 4, 2
 
Motor Year Engine Oil Engine Coolant Idle Speed Ignition Timing Plug Gap Distributor Air Gap Dwell Angle
1975 5.1 qts 6.3 qts 750 RPM Manual 650 RPM Auto 12B (CA:10B) .034 in .020 52
1976-1977 4.5 qts 8.5 qts 750 RPM Manual 650 RPM Auto 12B (CA:10B) .033 in – Points .041 in – Transistor .020 in – Points .008-.016 in – Transistor 52
1978 4.5 qts 9.3 qts 600 RPM Manual 600 RPM Auto 12B (CA:10B) .041 in .008-.016 in  
1979 4.5 qts 9.3 qts 650 RPM Manual 630 RPM Auto 12B (CA:10B) .041 in .012 – .020 in  
1980 4.5 qts 9.3 qts 600 RPM Manual 600 RPM Auto 12B (CA:10B) .041 in .012 – .020 in  
 
Valve Clearance
Intake
0.08 in. 0.20 mm
0.010 in. 0.25 mm
Exhaust
0.010 in. 0.25 mm
0.012 in. 0.30 mm
 

Index

^

620 Specs

General Info Regarding Dimensions, Capacities, Lights, Suspension, Steering and more.
^

L16 / L18 / L20B Specs

Engine Ratings, Valve Clearances, Idle Speed, Timining, Piston/Bore Size, Capacities and More.
^

Paint Codes

620 Paint Codes and Examples.

^

LSD/Diff Swap

LSD/Differential/Axel information.

^

Torque Specs

Torque Values for Repairing / Rebuilding.
^

Manuals / Diagrams

Repair Manuals and Wiring Diagrams.
^

J13 / J15 / J16

Service Manuals.

^

Center Link Flip

For Clearancing Oil Pan on Engine Swaps. 

^

Disc Brake Conversion

Learn About the Diffrent Options for Converting to Disc Brakes.