Stock H-D Front head, CNC Ported. Stock H-D part 17090-06, CNC ported by the power wizards at S&S Cycle. According to S&S catalog, these heads feature 1.90" intake and 1.61" exhaust valves and. This front head is in great condition, and has never been run. Looks like it sat around bolted to a shelf display. Shown as is, never been run, still assembly lube in the valve guides. The item "Harley-Davidson Front Cylinder Head p/n 17090-06 CNC Ported Silver" is in sale since Wednesday, April 17, 2019. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Cylinder Heads & Valve Covers". The seller is "mnky37" and…