Andy;101439 wroteAll LS iron blocks are pretty much the same mass.
Yeah it will comply as it will have better emissions than the factory Volvo. The emissions info can be found easily enough.
Sorry I meant comply in relation to the diesel, that your chasing the weights for.
The research I found was, find a 5.3/
4.8 +t and engineer that. Then go and Nd stroke the living Christ out of it. Put the 7 litre through it. Or something. Unless you say anything, it's not possible to see from looking outside of the engine