1720Cylinder head, bare, dual port, Combustionchamber: 51ml (3.11 CI)
1720-01New cylinder head, dual port, empty
1720-02New cylinder head, dual port, empty
1721New cylinder head, dual port, with valves, Combustionchamber:...
1721-4NOS cylinder head 1600 single port
1730Single valve springs (30% stronger than stock style), 8 pieces
1731Dual valve springs, 8 pieces
1731-1Extra strong dual valve springs, 8 pieces
1732-1Valve retainer, Chrome Molybdene, set of 8 pieces
1732-2Valve retainer, Titanium, set of 8 pieces
1732-3Valve retainer, original model, each
1732-500Valve retainer 25/36 hp / Okrasa style, each
1733Retainer clips, set of 8 pairs
1733-250Retainer clips 25/30 hp / Okrasa style, 8 pairs
1734Valve springs with aluminium retainers and clamps, full...
1735Valve spring, standard, each
1735-250Valve spring 25/30 hp/ Okrasa style, each
1739Valve lash caps, by 8 pieces
1765Aluminium valve cover with screws, mounting kit and rubbers, as pair
1766Mounting kit to replace valve cover with screws
pieces of # in shopping cart.