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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What valve stem seals do I go with?

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Old Oct 10, 2010 | 06:37 PM
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Default What valve stem seals do I go with?
I have an ebay coupon so I want to get them on ebay.

http://cgi.ebay.com/ebaymotors/Viton...item588a03072d


http://cgi.ebay.com/ebaymotors/New-M...item27b38caf7a

Thanks
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Old Oct 10, 2010 | 09:04 PM
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I swapped out valve springs this summer because I thought my hotcam springs were floating, used the ebay valvesprings and I think a set of those, don't remember which one but they came loose pretty quick, don't know if it's those seals or the ebay spring which is a double spring which might have rubbed the seals. needless to say replacing valve seals in a lt1 with the heads on the car is my least favorite thing I've ever done. get some felpro they worked real well for me and never came loose.
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Old Oct 10, 2010 | 09:26 PM
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Felpro Viton seals. Avoid the K-Line "wiper" seals at all costs.
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Old Oct 10, 2010 | 10:48 PM
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check your valves and guides for size before you order the seals. you'll need to know what size they both are to get the right seals.
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Old Oct 10, 2010 | 11:34 PM
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Originally Posted by merim123
check your valves and guides for size before you order the seals. you'll need to know what size they both are to get the right seals.
Heads are off the car, they are stock LT1 heads off a 93
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Old Oct 11, 2010 | 06:52 AM
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Still check the OD of the guides and compare them with the new seals, just to be safe. IIRC, some manufacturers offered some funky seal diameters that claimed they would fit but did not.
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Old Oct 11, 2010 | 07:38 AM
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Originally Posted by RamAir95TA
Still check the OD of the guides and compare them with the new seals, just to be safe. IIRC, some manufacturers offered some funky seal diameters that claimed they would fit but did not.
Will do, thanks.
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Old Oct 11, 2010 | 08:50 AM
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Originally Posted by whytryz28
I used those light blue viton ebay seals and they are fine. They are slightly looser fit than the Felpro, so I was a little worried at first, but they have stayed put and done their job for 1500 miles, which is what I have on my rebuild. The color looks cool on an engine too.
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Old Oct 11, 2010 | 06:28 PM
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FWIW, the inner diameter of the seals I used measured .55" and fit perfectly, nice and snug. Those .5" in your first link are way too small and won't fit on the stock valve.
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