Sorry,
Not GT 40 related, but too many experts here that will know the answer. Since SPF 2174 and 2175 are complete, I moved on to another project I had waiting, a 1966 Sunbeam Tiger. The car needed some chassis work so I removed the engine to freshen it up a bit. The owner knew the engine was not the original 260, but I think he thought it was a replacement 260. As I was tearing the engine down, something did not make sense with the 302 casting numbers in the valley, checked bore and it was 4.00 not the 3.80 of a 260. I then decided to check the engine casting to see what I had. The casting code is a C8AM. I have decoded this as a 1968 Motor, from the SVO devision!! What does the "M" code really mean?
Not GT 40 related, but too many experts here that will know the answer. Since SPF 2174 and 2175 are complete, I moved on to another project I had waiting, a 1966 Sunbeam Tiger. The car needed some chassis work so I removed the engine to freshen it up a bit. The owner knew the engine was not the original 260, but I think he thought it was a replacement 260. As I was tearing the engine down, something did not make sense with the 302 casting numbers in the valley, checked bore and it was 4.00 not the 3.80 of a 260. I then decided to check the engine casting to see what I had. The casting code is a C8AM. I have decoded this as a 1968 Motor, from the SVO devision!! What does the "M" code really mean?