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valve stems wtf need help

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Old Jan 28, 2010 | 06:42 PM
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Default valve stems wtf need help

so i got my cam in and im doing my new valve springs, and im putting new seats and retainers. i ordered a set of 16 valve stem seals(.500 x 8mm) susposedly for an 2001 ls1. but on it now are the black and brown ones. i got one side done, all the new stems, springs, reatiners but just noticed that there were 2 different sizes on before. did i get the wrong ones? this sux, cause i need the car running by the weekend.
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Old Jan 28, 2010 | 06:48 PM
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right here is what i got from thunder racing, can i put these on all the valves?

161-VS-UV5001-EO LSx Valve Stem Seals, .500 X 8mm, set of 16 (Valve Stem seals will need to be replaced when using the Comp 26921-16 Valve Springs or the Comp 26925-16/26926-16 Valve Springs.)
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Old Jan 28, 2010 | 06:57 PM
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Not sure what you are asking. The GM seals were two colors. Black for intake and brown for exhaust. Some aftermarket seals are all one color, for example brown. If they are from TR and the only question is color, as long as they are the correct size you should be OK. Check with TR if you are unsure.
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Old Jan 28, 2010 | 07:00 PM
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they are all black, so one size will fit all then?
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Old Jan 28, 2010 | 07:02 PM
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Sizes are all the same. The original GM seals were brown on exhaust because they are exposed to more heat and the rubber compound is different.
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Old Jan 28, 2010 | 07:04 PM
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oh okay, i saw that the originals were 2 different colors and didnt know if i needed different ones for intake and exhaust but i guess im good then.
thanks
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Old Jan 28, 2010 | 07:08 PM
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Originally Posted by ls1curt
oh okay, i saw that the originals were 2 different colors and didnt know if i needed different ones for intake and exhaust but i guess im good then.
thanks
Not sure, just read their web site and found this. I would call them in the morning or PM Shane as maybe he is on the forum tonight if you need an answer right away.

161-VS-UV5001-EO-8

"LSx Valve Stem Seals, .500 X 8mm, set of 8 (Valve Stem seals will need to be replaced when using the Comp 26921-16 Valve Springs or the Crane 40-144832 Valve Springs.) - Order set of 8 when using in combination with GM Exhaust seals, part number 20-12457652."
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