| Listed in parts books | Not catalogued by year yet |
EXHAUST VALVE GUIDE NORTON 850 +.002 ROWE
Exhaust valve guide for the Norton 850 engine, plus .002 oversize, made by Rowe.
This is an exhaust valve guide for the Norton 850, sized at plus .002 over standard, from Rowe. It's not a Triumph part - it belongs in a Norton 850 twin cylinder head, where it locates and supports the exhaust valve stem as it moves up and down.
Read more
We don't have a lot of history on this one in our own records, so if you're ordering, have your head measured or confirm bore sizing before you commit. Oversize guides like this one are typically used when a head has been reamed out to correct wear or clean up a damaged guide bore, so fitment isn't a simple bolt-in - it depends on what your machinist has already done to the head.
Give us a call if you want to talk through what oversize you actually need before ordering.
Sorry if we got something wrong here. If you think this information isn't correct, .