TRIUMPH 650 T120 TR6 9-STUD CYLINDER BARREL 1963-72 BONNEVILLE 70-6304, 70-4546

Part # 70-6304 E6304, 70-4546, E4546

Fits: Triumph unit 650cc with 9 stud head models. These have the oil way to the exhaust tappet block. Correct for 1965-72 650cc.
Can also be used on 1963-64 unit construction and 650 pre-unit engine with 9 stud head top ends.