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Jul 21, 2009 | 03:47 PM

40 knucklehead

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Stage I

Joined: Jul 2009

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jugs

I have and 1940 knuckle with S&S 80 inch jugs on it only one hole on the head was pluged and redrilled. Does anyone know if pan or shovel jugs are a closer fit?

Jul 21, 2009 | 04:12 PM

FilthyLucre

Road Master

Joined: Jun 2008

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From: NW Florida

Knuckleheads have a different bolt pattern than pans and shovels. To use a pan barrel you will have to use a couple of stroker plates to make up the difference in height. The Easy Rider Tips and Tricks Vol 1 has an article on fitting a pan jug to a knuckle. If your heads are already plugged and drilled determine if the S&S barrel was a pan or Shovel. Use a head gasket to tell.