| Also known as | 50-0650 |
| Listed in parts books | Not catalogued by year yet |
INLET GUIDE,NORTON 850 +.004 - KWPM
An inlet valve guide for Norton 850 engines, machined +.004 over standard size, also listed as 50-0650.
This is a valve guide for the inlet side on Norton 850 engines, machined to +.004 over standard size for a worn bore that's been reamed slightly oversize. It's an oversize replacement guide, not a stock-size part, so it's meant for a cylinder head that's already been bored out to take it.
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The canonical description ties this specifically to the Norton 850, so this is not a Triumph part despite how it may show up in a Triumph-focused parts search. It also carries an older stock number, 50-0650, if that's what's printed in your parts book.
We don't have more detail on this one beyond what's noted here. If you're not sure whether +.004 is the size your head was reamed to, give us a call before ordering.
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