1050cc big bore kit to fit to CB750 1969 - 1978, 72mm pistons, H beam rods 16 mm little end bush, 4340. Shot peened, sleeves, conrod bearings and head gasket. Machining available, I can resleeve your barrel, bore the top case to suit O/S sleeves, valve service head or big valve and porting work, lighten crank deball and clean and balance or if I can do the whole engine.
Machining involved to barrel and top case. Also offer crank upgrade see pictures in store, 4kg lighter, polished, knife edged, modern design, oil gallery's cleaned and re balled and balanced.