You Guys blew me away !!!, The 1200 Datsun boys are really a serious helping hand.
Thanks to each and everyone for all the replies !!!

Those pistons are not low-compression. The dish is smaller around but deeper, so they end up with same compression as other A-series.

Since they are wedge-head, the piston dish is offset.

My A15 came with those too. If you're going turbo use the E15t pistons that's what my mate is using.These can be found in the Nissan Langley.

I hope this helps

moral of the story, if ever in doubt... ask bige hahaha

Thanks Bige, I'll keep that in mind.

That dish is pretty good already for light to moderate boost.

That second dished piston is the broad shallow dish that I tend to find in A14 engines, except the EGI model, which has similar dish to the one you posted earlier.

Strike three for original pistons, my unbored A15 has them. Stupid really they could of saved some coin by using standard style dishes in thier A15 pistons

1st pic are a15 std type pistons.

your last pic seem to look like a14 pistons'

different comp hieght; a15 30mm c/h
a14 32.5mm c/h

learning everyday !!!
Thanks guys!

Probably then an imported engine, because the local(south african version) of these pistons looks a little different.

Maybe just go with new pistons, like you said.
thanks

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