I'd like to narrow down the differences between the Rover V8 and its Leyland P76 4.4 litre sibling. Somewhere on the forum (I can't remember where), Chris York tells a story about the 4.4 litre being part of the original plans for the V8 when Rover took it over, but a difference in bore centres stopping the show due to limitations of the production line machinery. According to Chris, IIRC, it was left to the Aussies to put the 4.4 litre into production because they were building a new line and so the different bore centres didn't worry them. Now, I'm confused! Come in, Chris! Today I was talking to a bloke who was driving a late 70s Range Rover that has been fitted with an ex-P76 4.4 litre V8 equipped with the Rangie's original 3.5 heads. Surely this wouldn't be possible if the bore centres were different? Same chap also converted another one years ago that ran the P76 block and later RR heads and EFI. It was only while chewing things over later that some bells started to ring, else I'd have asked him more questions. Dammit.