I see that over on the FE Forum C5HM has uncovered some more information regarding the SOHC running in 1964 at Daytona:
http://www.network54.com/Forum/74182/message/1462404898/More+NASCAR+Cammer+DataSeems that Earl Wade was giving me the straight scoop when he told me about the SOHC running a test session at Daytona in 1964, although there's no way to verify the speeds he was quoting. Nevertheless, I'm glad that Earl had this right. It reminded me of an old magazine I had from 1964 with an early version of the SOHC installed in a 1964 Galaxie. After I dug it up it turned out to be CARS magazine, from November 1964. I've scanned it and reprinted it below.
The article shows one of the early SOHC engines with the spark plugs coming in at the bottom of the valve cover, instead of the top. Also, if you look very carefully at the pictures of the driver's side of the block from underneath on page 4, you will not see a sideoiler oiling passage. Its hard to tell from the scanned photo, but from the original photo in the magazine it definitely does not appear to be there. Definitely an early 427 block, not a sideoiler, which I found very interesting.
Another thing I noticed is the front cover, which looks completely different than the production style front covers, which had the inspection plates on the front.
Another thought, pure speculation, is what SOHC engine ran at Daytona in 1964? Given magazine lead times, this magazine would have probably come out in September, and the article written in June or July. I wonder if the engine that ran at Daytona in 1964 was the early version? Earl told me it was the later version with the revised spark plug location and sideoiler block, but I wonder...
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