BP5 to BP6
 

I got given a BG Astina rolling chassis for free, it's all good just needs a motor bolted back in and four tyre's. I have heaps of parts lying around and two BP5 motors and one BP6. The two BP5's are ear marked for other cars already which leaves me with the BP6. Now my question is as the Astina has a BP5 loom and I have the BP5 parts if I swap them to the BP6 so the engine harness plugs in will the BP5 ECU run the BP6 engine ok or will I have to swap the whole loom as the BP6 ECU that I have won't plug into the BP5 loom. Also does anyone know if there is a list of engine-ECU's out there.