User Login    
 + Register
  • Main navigation


Lost Password?

Register now!
Fast Search
Slow Search
Google Ad

[Datsun 1200 encyclopedia]

Engine ID Mark

From Datsun 1200 Club

Datsun 1200 encyclopedia | Recent changes | Edit this page | Page history | Switch to MediaWiki mode

Printable version | Disclaimers | Privacy policy
Category: A-series Engines

The engine number is stamped on the engine block itself. It positively identifies the engine size (e.g. A12) as well as the serial number. The mark is always on the left (distributor) side of a Datsun A-series engine, but the location varies with the year. If you do not see the number, wipe the grease off the engine block.

Engine Number

Left Side of Engine
To about 1980  |  From about 1981
Below #4 plug  |  Below #2 plug

1970-1973 A12 Engine ID Mark is below #4 spark plug, on jutting pad (above starter)
174_50f624caf00ca.jpgUpload click to view 770.jpgAlbum click to view 174_50033e9468514.jpgUpload click to view 174_50f624c1ed952.jpgUpload click to view

1974~1981 A12 ID Mark, below #4 plug

~1982-1995 A12 ID Mark Type B is below #2 & #3 spark plugs, center of block, above fuel pump, forward of distributor
23706.jpgAlbum click to view 23705.jpgAlbum click to view

26177.jpgAlbum click to view

Late: above fuel pump boss, below #2 plug
18742.jpgAlbum click to view 23704.jpgAlbum click to view

Early ID - Stamp is below #4 spark plug, on vertical pad

Early Tall-Block (A13/A14/A15) ID Mark is below #4 spark plug, aft of distributor

Late Tall-block (A14 or A15) ID Mark location is below #2 & #3 spark plugs, center of block, above fuel pump, forward of distributor

Tall Block Comparo: 1974 A12 vs 1974 A13 - Left: A12, Right: A13 tall block

Matching Numbers

If the engine is the original one, the serial number will match that on the Model Number Plate.


Nissan A Engines: Overview | A10 | A12 | A12A | A13, old | A13, new | A14 | A15

Retrieved from ""

This page has been accessed 18,896 times. This page was last modified 07:01, 13 August 2019. Content is available under Datsun 1200 Club.