Op speurtocht over het internet kwam ik de volgende post tegen (let ook op de gearceerde tekst)

http://forums.turbobricks.com/showthread...

The engine was originally the 3.0 B6304S2, but it was overheated badly, so I had to decide what to insert to that empty space. I was considering both the n/a 3.0 or 2.8 T6 from S80, but I wanted to stay street legal (= to have the same engine code), so I decided to keep the B6304. But it led to another (chain of) issue(s), because these engines in the 960's are known to be prone to block cracking when the head is removed and then the head bolts are tightened again, and I didn't want to have this time bomb under my bonnet. So after some talking and searching, I found there was metallurgy update in the block making in '00, and luckily there was one wrecked '01 S80 with the B6304 inside available on the yard. So, the engine had to be mounted. Although the engine codes are almost the same (B6304S2 vs. B6304S3), there are some differences because of the different position of engine in the car (960 longitudinal, S80 transversal). The engine mounts and the complete exhaust side is identical, but the intake and the accessories (power steering pump, alternator, AC) and belt routing is different. Also, the S80 engine already has the variable timing of the intake cam, that is n/a in the 960.