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Post  WingingIt74 Wed Feb 26, 2014 11:03 pm

I came across a weird cylinder and head. The head and cylinder threads are a smaller diameter than a normal 049 engine, is that a cox cylinder?
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Post  Cribbs74 Wed Feb 26, 2014 11:05 pm

WingingIt74 wrote:I came across a weird cylinder and head.  The head and cylinder threads are a smaller diameter than a normal 049 engine, is that a cox cylinder?

Is it a thin walled cylinder? If so it's just a pre '55. I think it's '55 maybe '56 can't remember. I think Mark is on. Maybe he can chime in.
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Post  Mark Boesen Wed Feb 26, 2014 11:34 pm

In 1956 cox introduced the larger diameter threads for a better seal.

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Post  WingingIt74 Thu Feb 27, 2014 8:23 am

That would be the one, thanks Mark!
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