As far as I am aware the only A series engines to get them were A12 GX's and A14GX's. Now before anyone jumps up and down saying there is no such thing as an A14GX there is and I have had a few engines and a car. When in Japan cruising the wrecking yards many moons ago I recall seeing at less five A14 's with twin Hitachi's lying around unloved. NZ got a lot of this sort of stuff in the 80's usually as filler in containers coming here full of Jap import cars. NZ was lucky in that regard, I recently dismantled an extremely rusty 120Y GX which was a NZ new model which sold alongside the nana versions and the cooking SSS with twin Dellorto's.