Understood. I slight boring may be required then. Seeing as the block I measured out back come out to 82.35mm
I need to measure these things myself rather than go off the documentation - and another thing I just realised is that I have a 2000 SVT which has a smaller bore still.
I may need the used block I have at my disposal if I build up a 2.5L as it's a 99 and would have the larger bore to start with.