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Old 09-18-2019, 11:27 AM
Dan Hodges's Avatar
Dan Hodges Dan Hodges is offline
Sensei of Internal Combustion
 
Join Date: Sep 2004
Location: A garage in south St.Louis
Posts: 523
XS Modifiactions

Hello Friends
I have read a bunch of questions about heads, pistons/compression, cams, carburetors and so forth on the XS and from 2008 thru 2010 I ran the table on all this stuff and posted it and so you can find this stuff if you search my post because I'm not going thru all this stuff again.

Lastly, whatever you do don't go over 160 lbs. of pumping compression because this is all 93 octane gas will support on an air cooled motor on the street. Basically, the Wisco 1196 pistons with the early cams and late heads are a good combination and will fetch about 9.5 to one static compression without cutting the head or about 150-160 lbs of pumping compression once the rings have seated.

Good Luck.
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81 Black "1179" Xcessively trick Super Special. One owner (me).
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