Xj12 compression ratio australia

I can see that there were two CR’s used in XJ V12’s in the pre-he days

L suffix engines were 7.8:1
S suffix engines 9.0:1

does anyone know what CR was delivered to Australia

Actually, three. There was a 10.0:1 sold just after the introduction of Digital P EFI and just before the introduction of the H.E. heads. Bywater opined it was the best of the V12’s.

Ok - thanks Kirby. Always great to hear your input. The HA suffix was 10:1.

The relevance of my question is which CR did jag send to us in Australia