Big Bore Kit

Honda CB900F DOHC 1978-1982 1123 Big bore kit


Honda CB900F DOHC 1978-1982 1123 Big bore kit
Honda CB900F DOHC 1978-1982 1123 Big bore kit
Honda CB900F DOHC 1978-1982 1123 Big bore kit
Honda CB900F DOHC 1978-1982 1123 Big bore kit

Honda CB900F DOHC 1978-1982 1123 Big bore kit   Honda CB900F DOHC 1978-1982 1123 Big bore kit

Honda CB900F DOHC 1123cc Big Bore Kit. (Rods, Head Gasket, Sleeves, B/E & Piston Kit). 1123cc big bore kit to fit to CB900F Boldors, 72mm pistons, H beam rods, sleeves, conrod bearings and head gasket. 117 mm c/c H beam rods.

4340 Forged Chrome moly steel. Supplied With 20,000 H/Tensile Bolts. 17 mm Bronze Bush little end.

Hypoeutectic pistons, 72mm 17mm pins. Premium grade cast iron for the job. Machining available, we 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 we can do the whole engine. Machining involved to barrel and top case.

Crank upgrade see pictures in store, 4kg lighter, polished, knife edged, modern design, oil gallery's cleaned and re-balled and balanced.


Honda CB900F DOHC 1978-1982 1123 Big bore kit   Honda CB900F DOHC 1978-1982 1123 Big bore kit