| Also known as | 70-4031 |
| Listed in parts books | Not catalogued by year yet |
VALVE GUIDE 500+.015
An oversize (.015 over) valve guide for the 500 engine family, also listed under the older number 70-4031.
This is a valve guide machined .015 over standard size, listed for the 500 engine family. It's an oversize replacement guide, meant for a head that's had its original guide bores opened up .015 inches over stock during a rebuild, whether from wear or from a prior repair.
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The catalog also carries this part under the older number 70-4031, so if you're working from an earlier parts book and see that number, it's the same piece.
We don't have much more detail on file for this one beyond the oversize spec. Give us a call to confirm it matches what your head needs before you order — valve guide fitment is not a place to guess.
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