Bronze Valve Guides?

BigSkyBigSky Posts: 326Senior Contributor
Does anyone have a source for bronze valve guides in 11/32” ID & 0.625 OD?

Comments

  • squirrelsquirrel Posts: 85Member
    not bronze, but possibly the correct size. The OD is kind of critical to get exact, though.



  • BigSkyBigSky Posts: 326Senior Contributor
    Your the Man!!!!!!!!
  • BigSkyBigSky Posts: 326Senior Contributor
    Well.... the Summit Racing website showed two different stem sizes 11/32” & in the notes 0.3735 which is 3/8” for the item.   After calling Summit Racing 3 different times, I finally reached someone who could find out which size it was & unfortunately it’s 3/8”ID, which is too large.    I am upgrading my 37 Hudson from the original 3/8” valve stems to the 38 & later 11/32” valve stem with all new guides.  

    As Squirrel stated the OD is the critical one & his is absolutely right.  Then finding the same or smaller internal diameter is next, as it can always be reamed out to the size I need.  Length is not too big of an issue as long as it’s at least 2” in length.  Original is around 2.5” but since the valves are vertical I can safely go down to 2” if necessary.   I’ve continued to search for a guide with an 11/32” ID (.3437ID) & 0.627 OD but have come up short. 

    Egge’s website shows guide size 0.3437ID & 0.627OD for a 38-40 Hudson.  So if anyone else knows of one, let me know.  




  • GeoffGeoff Posts: 3,572Senior Contributor
    Dale Cooper has the correct valve guides.
  • BigSkyBigSky Posts: 326Senior Contributor
    I ordered a set from him and they aren’t the correct ones.  I spoke to him about the issue over two weeks ago and still haven’t heard back.   I called again this morning but he’s still not answering phone calls.  While I don’t want to buy elsewhere, I may be forced to do so if I don’t hear back from him soon.
  • Courtesy ManCourtesy Man Posts: 128Expert Adviser
    Hi Big Sky - Are these same for intake and exhaust ?  I have NOS cast iron .625 OD and .342 ID  and length is 2.568 . These are initial dimensions. Or I may be able to machine you a set in bronze (alum- silicone-bronze) but just the raw stock is expensive before machine work Will check number of the cast iron supply if you are interested and can send photos. Gert Kristiansen Deseret Chapter  (retired machinist).

  • Courtesy ManCourtesy Man Posts: 128Expert Adviser
    Big Sky are you in need of valves ? May have some NOS.  Gert
  • GeoffGeoff Posts: 3,572Senior Contributor
    Exhaust and intake valve guides are not the same.  Exhaust guides are longer, and have a recess machined in the top to allow for expansion of the stem.   
  • Courtesy ManCourtesy Man Posts: 128Expert Adviser
    Yes thank you Geoff I see the difference now. Exhaust length about 2.945 - I have both intake and exhaust ( although many more intake guides). Gert
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