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NOS Norton unit twin Jubilee ? Electra ? IN Valve 1..175 dia 3.540 long -
Head Diameter 1.175 Stem Diameter .275 -
Intake and Exhaust valves Norton ES2 1.738 dia 4.330 long Maker # G&S 2407 sc s intake G&S 2407ke exhaust Sold as a pair -
Norton Atlas And Commando Cast Iron Valve Guide. These Guides Are Suitable For 500, 650, 750CC Models Not machined for seal. Can be used for Intake on Commando with no guide seal.
