1963 FLH panhead valve guide

[flatheadDave]

What’s the size of the standard guide for a 63 panhead?

[Excalibur]

This Kibblewhite link should help. Roll down the drop-down box for each oversize to confirm spec

[RooDog]

https://shop.kpmivalvetrain.com/c/v-twi ... _cast-iron

[flatheadDave]

Ok so standard is 0.5650”. I just pulled all my brass guides from both of my heads for a valve job. And I’m measuring the ones I pulled out and they are measuring 0.5580

How is this possible?

Thanks

[1964 pan]

Ok so standard is 0.5650”. I just pulled all my brass guides from both of my heads for a valve job. And I’m measuring the ones I pulled out and they are measuring 0.5580

How is this possible?

Thanks

Wow. I have no idea. When you find out. Let us know.

[flatheadDave]

It looks like my friends micrometer was not accurate. Maybe worn. So I used my own micrometer and they measure between .002 and .008 over. I’ve ordered some guides for replacement.

My next question is: what happens when you need over .008 size vale guides? I only see in my parts book, sizes that go up to .008 oversize. Over 8, are the heads junk or is there an insert ?
Thanks
Dav e

[flatheadDave]

Oh I see that libel makes oversized. Never mind. Thanks !

[1964 pan]

You solved your own problem. Your welcome. Any more help you need I could use also.