Hey Adam, I've had a few people mention the suggestion you have posted so I will make some enquiries as to why this may not be an option for my particular problem. The mechanic did state that the cylinder bores 3 and 4 were the worst he had come across but as you state, you would expect the compression figures would be lower. I have a feeling that the head has been warped and may cost the same to replace rather than repair. As I mentioned, I will at least enquire about the options. Hope to be on the track for the Bega race in the coming weeks.