1966 MODIFIED TRIUMPH 650 CYLINDER HEAD NEW VALVES, SPRINGS, REBUILT. Used 1966 Triumph 650 cylinder head that has just had a valve regrind on a cylinder head that very nice valve seats and had all its fins intact. New Black Diamond were fitted along with a new set of British manufacture valve springs. Exhaust stub fit is good and rocker box bolt threads all look good. Due to damage to one of the intake ports, competition style intake stubs that will accept 30, 32, and 34mm Mikuni VM carburators were installed. Get images that make Supersized seem small. Showcase your items with Auctiva's. Track Page Views With. This item is…