| Diagram | Fig. 1 — CYLINDER HEAD – ROCKER BOXES – EXHAUST PIPES · ref 62 |
| Subsystem | engine top |
| Listed in parts books | 1973 |
Valve guide (·015" oversize)
A .015 inch oversize valve guide for the cylinder head, for use after the guide bore has been machined oversize.
This is a valve guide finished .015 inch oversize, listed against the cylinder head and rocker box records for the 1973 model year. A valve guide sits pressed into the cylinder head and carries the valve stem, keeping it centered and controlling the wear point instead of the softer head casting. The oversize spec means it is meant for a head that has already been bored out past standard to clean up a worn or damaged guide bore.
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Because this is an oversize part, it is not a straight swap into a head machined to standard dimensions. If you are chasing valve guide wear or a smoking top end and are not sure whether your head has already been opened up to this oversize, that is worth checking before you order.
Our catalog record on this one is a single line tied to the cylinder head/rocker box/exhaust pipe figure for 1973, so we don't have more detail on it beyond the oversize spec itself. Give us a call if you want to confirm it against what your head actually needs.
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, .

