Sounds like a bit of a dumb question but I just require clarification on this.... I've been researching this flat out but to no avail. To my knowledge the '424 PCM is exactly the same (without the memcal of course) in the v8 and v6, so for argument sake I could buy another spare '424 off a v6 and it will still run my v8 with $11p. The reason I am asking this is I recently cooked my PCM and require a replacement, and if its listed on fleabay as a v6 they're a shiteload cheaper than if listed as a v8 one. I've been going over wiring diagrams flat out and everything looks identical... The extra pinouts pretty much just run the CAS, knock sensor etc in the v6 and aren't used in the v8 obviously.
I'm doing this so I have a spare PCM, so if anything goes awry I can just swap it over.
So pretty much there are two different circuits in the PCM, and the memcal will determine if its a v8 or a v6 and whether to use the CAS circuit or not with the bin that's on the memcal yeah?
I think this makes sense what i'm trying to describe

Cheers