With the help of folks here, I have been able to 90% positive identify the year of my motor w/out the abailability of Model or SN. Based of pictures in magazines from that era. Now, in the 1954 rundown of this motor, there were 2 models. 1) CD-10 and 2) CD-11. Can anyone tell me the difference between the 2??? Then I'd have the year and model, which should be enough to get some parts. Thanks==nw