retrofitting a GSR head and turbo to AC 1.8 Gsl engine i have heard this can be done to make the engine a turbo'ed fuel injected jobbie? has anyone done this or know what to do?

It would probably bolt up, but i things like the compression ratio would be no good for turbo, and it wouldnt' use piston coolers etc. Just not built for a turbo.

The price of motors, your better off just gettting the complete 1.8 and putting it in, you'll end up rebulding a motor before long if u try to turbo charge a gsl motor without internal changes.