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Valve stem seals
https://slantsix.org/forum/viewtopic.php?t=47912
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Author:  raycycled [ Tue Feb 14, 2012 8:10 pm ]
Post subject:  Valve stem seals

Am I missing some thing ? renewing a S6 head and need new valve stem seals My valves measure 0.360" or 23/64th I can't find any this size should i just use the 11/32 ones ?,Or do I have an odd size, RAY

Author:  Joshie225 [ Tue Feb 14, 2012 8:29 pm ]
Post subject: 

Stock valves have 3/8" stems. Where on the valve did you measure and what measuring device did you use?

Author:  SlantSixDan [ Tue Feb 14, 2012 8:58 pm ]
Post subject: 

If you are reworking a stock head, order valve stem seals by application and not by size.

Author:  raycycled [ Tue Feb 14, 2012 10:29 pm ]
Post subject: 

I measured at the middle of the stem, with my dial indicator, accurate to with in 0.0001" Not sure if it is a stock head just a motor I picked up to swap over, RAY

Author:  Fopar [ Tue Feb 14, 2012 10:47 pm ]
Post subject: 

Measure just below the keeper notches, might be the valve stems are worn.

Richard

Author:  raycycled [ Wed Feb 15, 2012 12:48 am ]
Post subject: 

The stems are parallel all the way down with in 2 thou, are you sure stock valves are 3/8th ? thats huge and the standard caps available seem to be 11/32 which is smaller"? RAY

Author:  Joshie225 [ Wed Feb 15, 2012 1:00 am ]
Post subject: 

Stock intake valve: http://info.rockauto.com/SealedPower/V1434.html
Exhaust: http://info.rockauto.com/SealedPower/V4093.html

Author:  lancer61 [ Thu Feb 16, 2012 12:30 am ]
Post subject: 

Same thing if you look in a shop manual, it says 0.372" to 0.373"

Author:  bigslant6fan [ Thu Feb 16, 2012 2:42 pm ]
Post subject:  .

Maybe your head has been rebuilt before, and the valve stems were worn and reground to the smaller diameter. You could try 3/8 Fel-pro stock type seals to see if they still fit snugly. If you have stock S/6 springs, order them for the S/6, if you have performance springs,order them for a 1970s dodge 318 V-8. V-8 springs have thicker coils and a slightly smaller I.D. so the V-8 seals have a smaller O.D. for clearence.

Author:  SlantSixDan [ Thu Feb 16, 2012 3:09 pm ]
Post subject: 

Wow. A whole, entire thread — ten posts and counting — about buying valve stem seals. :shock:

Author:  Doc [ Thu Feb 16, 2012 3:34 pm ]
Post subject: 

I buy "pretty looking" blue colored ones (viton material) from thisebag seller
There are many shapes and types of valve stem seals out there.
DD

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