CNC ported 225cc Dart Iron PRO 1 aluminum cylinder head. CNC ported and port design by HVH. We start with Dart 200cc/64cc head and CNC port them to 225cc intake runners and 72cc combustion chambers. 60+ hp gain over stock Dart heads!! Huge gains in torque! 2.080" Intake valve job and 1.600" exhaust valve job. The item "CNC PORTED 225cc DART PRO 1CYLINDER HEAD" is in sale since Wednesday, May 18, 2016. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts". The seller is "high_velocity_heads" and is located in Knoxville, Tennessee. This item can be shipped worldwide. Brand: Undisclosed Manufacturer Part…