GMH R8 Tourer wag & Audi RS6 wag from Top Gear Australia

Its the Vette 6.0 bumped up .2 ltrs, well thats my guess anyway, since Holden is GM and they all pretty much run the same motors, Oz or US.

 

Yeah...I think so...but the guy said 6 plus liter 3/8 !?!?

 

I agree, it was so much easier to understand when we also talked in horsepower. When I had my car tuned I did the conversion so I understood the hp, then I smiled.
It took me forever to discover the LS1 Engine (5.7litre) is a 350 chev??
You are right all the GMH engines are from Chevy U.S. The engines we use are LS1, LS2 & LS3 these are listed in the link.
The best info to translate the engines is from the wikepedia site (link attached)......

LINK TO GM ENGINES

 

I think he said 6.2 liter V8, its just his Oz Accsent was so strong to us Yanks that it sounded like 3-8

 

Ah! Of course....good ear, Blackie.