| Diagram | Fig. 2 — Engine: Cylinder, Cylinder Head 750 and 850 · ref 6 |
| Subsystem | engine top |
| Listed in parts books | 1973 |
Norton CYL.HEAD RH5 750/32MM/8.9
A cylinder head listed under PN 064048, catalog code CYL.HEAD RH5 750/32MM/8.9.
This is a cylinder head listed under part number 064048, catalog description CYL.HEAD RH5 750/32MM/8.9. Our records on this one are thin, so we can't speak to specifics beyond what's printed in the catalog entry itself - the notation points to a 750 displacement and a 32mm reference, likely bore or valve related, but we don't have the full breakdown to confirm exactly what that 8.9 figure means or which application it was built for.
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Given the manufacturer code on file doesn't line up with what a cylinder head actually is, we're not going to guess at who cast this one or what bike it was meant to bolt onto. If you've got this number off an old head or out of a parts book and need to know if it matches what you're running, give the shop a call and we'll go through it with you before you commit to buying.
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