Those look like the CCX conversion from E type wire wheel hubs to a bolt on. As Bob says they should be the same. If you get some dimensions or want to put another hub alongside them let us know.
mickmate, you have shaken some cobwebs from this old brain. I do recall Peter saying that my original hubs were wire wheels. The bolt pattern is 4.5 in. The dimensions are hard to read in the photos. The dimension from the flange face to the brg is approx 2.25in. burdman
It looks like your current hub offset is substantially different from the XJ. That means, without the addition of spacers, your wheels will move in. I've attached a drawing of the stock XJ hubs.