Originally Posted by gambit

I was wondering what the differences are between the xr2i efi head and the rs turbo efi head????
I have a spare xr2i efi head and wanted to have it machined and use it on my rs turbo. I will use a new cam, valves, rockers etc
Also is the inlet manifold and injector rails etc all the same??? basically to make it easier: what can i use from an xr2i engine inorder to build an efi rs turbo engine??? I have alot of spares lieing around and thought i could start a new project.