Engine mount question

I am putting together a smith pa -12 Has anyone ever hear about a short or long engine mount for pa-12. What are the pro and cons . Smith provided me with with all the cowling pieces. Backcountry cub are supplying the engine mount , they said it is a zero thrust. They have made it similar to a pa -18 engine mount . The problem I am having is that ,all those cowling pieces seem to have been cut by smith to fit a long engine mount but now have a short engine mount I have looked at some pa-12 online and the engine seems to be more forward and made differently. What are the affects of having the engine forward or inward . Can you pros please help me out . This thing is driving me out of my mind.
Thank you guys.:roll:

Here is a good thread on the short, long mount on PA12.

Steve Pierce said:

Here is a good thread on the short, long mount on PA12.

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Cant find the thread Steve.

Where is the thread Steve.

Sorry, I forgot to include the link. :smile:

http://www.supercub.org/forum/showthread.php?36340-O-320-for-PA12&highlight=long+mount

I believe there are more if you search "long and short and mount". Lots of good stuff but I think this thread covers it.

The only mounts for the Smith are the stock with down thrust and the zero thrust. The zero thrust needs longer lower cowl braces. All of the metal for the cowl is oversize and you cut to fit. Backcountry has a video on cowl fabrication that will get you going. I wish they would just do a blueprint of the cowl assembly as it would make things a lot easier and you wouldn't have to watch the stupid video. Don

pittsdriver said:

..... I wish they would just do a blueprint of the cowl assembly as it would make things a lot easier and you wouldn't have to watch the stupid video. Don
...

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cowlings are more of an art than a part.....

each one is different it seems, to make one that fits nice.....