| Diagram | Fig. 2 — Engine: Cylinder, Cylinder Head and Fittings · ref 51 |
| Subsystem | engine top |
| Listed in parts books | 1971–1972 |
Norton Cylinder Head/Barrel Stud Nut
A cylinder head/barrel stud nut from the engine top-end assembly.
This is a nut for the cylinder head and barrel studs, listed against the engine top-end figure covering the cylinder, cylinder head, and related fittings. These nuts hold the head and barrel down onto the studs that run into the crankcase, so they're doing real clamping work keeping the top end sealed against combustion pressure.
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Our catalog record on this one is brief - it shows up in a single listing tied to the early '70s engine top-end drawings. If you're pulling a head or barrel and need to replace these, check the thread and size against what's actually on your studs before ordering, since we don't have more detail on file to confirm exact fitment.
Give the shop a call if you want us to run down fitment specifics before you buy - better to confirm than guess with a fastener that's holding your top end together.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
Sorry if we got something wrong here. If you think this information isn't correct, .