PLEASE NOTE: Delays in processing orders. Orders placed between Tuesday 21 January and Monday 10 February will be processed 11 February.
Valve cups (bottom collar) for Inlet and exhaust valve, for Norton twins (each), 0.705 in bore suits early guides. 4 required per engine. This will suit Norton 500/600/650/750/850 Twins 1949-75 & Matchless 750 G15 1964-68 with Norton engine . Original part numbers: D12/148; T186; T2073; 06-1399; 061399 - valve collars/ valve spring cup bottom
