Hi everyone,
So i need some advice.
I have a a12 turbo in my ute.
I recently got another a12 and put new rings and gasket/seals through it. So now im going to put it all of the fresh engine.
I have noticed my original turbo engine has different spark plugs? Is that because different year model engines or because it might be built for turbo? Plus how do i know what the head is off? A12-a14?

There's usually a heat range specified for each engine, it's in the tech wiki http://datsun1200.com/modules/mediawi ... dex.php?title=Spark_plugs

See if the plugs are in that range, I'd probably stick with what's in there if that was working well.

I use the BP7E in my turbo A15 (cooler than standard)
Is the head a round or oval (inlet) port ?