Please study pics and ask questions. XL heads with some very nice port / valve work. These were on a 75 XLCH. They have 2" intake and 1.75" exhaust valves. Intake port measures around 1.57" and exhaust measure around 1.5". The pictures pretty well show how extensive the work is. The item "Harley Ironhead 60's Ported Cylinder Heads & Rockers XR XLCH XL" is in sale since Friday, September 3, 2021. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Antique, Vintage, Historic". The seller is "jmarcruff" and is located in Great Cacapon, West Virginia. This item can be shipped worldwide. Brand: DYTCH Warranty: No Warranty