DesmoHarley - Italian American V-Twin Engine

The heads are the early large valve 900ss type, both the heads are rear heads with  the front turned around 180 degrees and running a front head cam, this gives me two heads with horizontal fins and orients the carbs and exhausts in better positions  for the 45 degree layout. I didn’t need to do any head work to get a 10.3:1 ratio because the Ducati has a fairly  low ratio with domed pistons, so by going with flat top pistons with the extra displacement, the ratio worked out perfectly. Chris had to engineer his own gear drive system for the cams and it came out great.  Specially made Axtell cylinders have their own bolts to attach to the cases plus  bolt holes in the correct pattern for the Ducati heads.