As a guest on this site and having worked for John Roxburgh as his accountant in the 1970's when the business was located at 101 York Street South Melbourne. I may be able to add more to the Bathurst 260Z story.
John entered 260Z in the 1975 Bathurst Race with paper work confirming that the interior space measurements for a Belgium specification car complied with the rules. It was something to do with stamping of the rear of the floor plan to prove the was sufficient rear passenger height between the floor and roof.
I was a timekeeper for John at the 1975 Bathurst race and remember that during practise when Doug Whiteford was behind the wheel he chose the wrong gear when changing down and more than one valve was bent. The cylinder head was replaced with the one from the car I had used to get there from Melbourne. The reason for the retirement so early in the race was that the car had the standard crankshaft pulley / harmonic balancer fitted and not the Factory competition part. I well remember the factory technical rep shaking his head when shown the broken part. Perhaps overheating was the explanation offered at the time. A bit like the story of Graham Hill's Lotus 15 at Le Mans retiring with generator problems after a conrod has punched a hole in the side of the block. I can't remember if Geoff Perry ever got behind the wheel. Another piece of History Geoff's father drove a Studebaker Lark for the Police Motor Sports Team.
After Bathurst the 260Z returned to the workshop and the roll bar was removed and standard wheels were refitted. It was then sold as a ex demo to a lovely lady who never knew of its brief racing history.
In a earlier post mentioned is made of the aluminium sump, from memory that had steel flaps to minimise oil surge. John was horrified at its cost from Nissan and tried to return it but as it was a special order he was left with it. There was also a special cylinder head with large ports that memory was sold to Roger Bonhome the owner of Dat Spares.
