Looks like a GX head, same specs. And yet, as listed above, it has a different part number than the GX head. What is different?

gx head is for the early blocks while the a12t head would have been found on later blocks such as the twin carbed motors in those 120y's
but i think i can see that little hole they drill in the side of the head on the early heads for the oil passage

Ah the mystery deepens. Yes, B210 used A12T engine. However this one is an older part: 1) M08 Part Type is for 1971 Datsun Cherry (E10) and 2) this photo shows the old-style oiling hole (same as GX head). From the photo, I don't spot the difference.

one day to go... (works out to about $710 at the minute)

the Japlish translation...:

"The GX head of B110? It is the new item. There is a oil hole for front disbi. With those which were processed afterwards it is to be improbable. You can use that way in A10 and A12 of B10 and B110, but of course without problem you can use even in A type after B210. Search: A10, A12, A12A, A13, A14, A15 and A type, Sunny, [sanitora], cherry, pulsar B10, B110, B210, B310, B122, P10 and X1R GX"

a14
gx is different again
but $710+ bit steep
had a pallet load of em once (lo k) but they are all gone now. ran out when i got my 1200!
isnt life like that
dazza

the closest number is A12T, wonder if the number is different as it's a bare head..

is there a pick of it from the top?

passed in with no bids.. I was a little surprised...

Here's another one:

GX head with new berylium valve seats