Hello, I have just removed the cam followers from my '54 C11G and they are in remarkably good condition. However, they are both marked with the part number 29-2291 and my parts book shows 29-2285. I have an odd one marked 29-2285 and they appear identical in appearance and all dimensions. I have not heard this engine running as it is a rebuild project. Any information on the 2291 part would be welcome. Thanks, Roland.