knurling valve guide

[Full Throttle]

Anybody ever heard of knurling the valve guides. Back in the days of building small block chevys we use to send our heads to machine shop and they would knurl the valve guides for better oil control and i know it renews worn guides abit. cheap way to renew guide without having to replace them but has anyone ever tried it on a small engine. Thinking about trying it on one of my heads to see if the oil control will be better on the stem.

 

[MB165]

I never saw any tools available from the oem's for knurling..... kits came to either ream for oversize stem or replace the guide and ream to size. I dont see any reason why it couldnt be done, but its really not too much to just press in 2 new guides.

 

[Commonrail]

Knurling is the cheap fix and personally I wouldn't do it.