There's a story on project pheonix in AMC issue 26 but it does'nt say if Moffat put the XC front on it or if he got a hole new XC to use for the 77 season.
Looking at all these old race photos makes me want to turn my 2 coupes into bathurst replicars.
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I reckon they would look good painted up as the 1,2 bathurst XC's.