what differences between D24 NA and TDIC

[Mick13]

I've got a 240 D24 NA (non turbo) and a D24TDIC from a 940
I'm thinking about swapping the TDIC in the 240 (Any tips and information are welcomed)
The NA have valve shims. It seems the TDIC not ? Hydraulics tapers ? and a better cooling ? Different head casting
Is this true ?
Is there other differences ? As I prefer to do valve settings, belts replacement (timing and pump, when the engine is out)