Can an S14 RB26 swap be used in an S13 Silvia?

I would like to buy an RB26 someone had in their S14, and drop it into my PS13... in-game, they're both the same engine, and the swap is availabel for every single Silvia in the game... would this be okay?

The RB26 engine can both be put in an S13 and S14 so I can't see why not.
It's not that the RB26 from an S13 is different than the RB26 from an S14 since it's the same engine, namely the RB26 :]

Yeah, I was just being cautious about it, since the rules say that parts can't be swapped between cars. I think it would be a good idea to edit the sticky to state that cross-platform engine swaps should be allowed where applicable? Like in this case, where the same engine can be swapped into a handful of cars.