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Valve seal question..

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Old Apr 23, 2009 | 06:02 PM
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Default Valve seal question..

I got these new seals with a some yellow ls6 springs and was wondering if anyone knew which ones were the intake and exhaust.
Thanks,C

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Old Apr 23, 2009 | 06:28 PM
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They look the same to me, color is different but the size and shape look identicle in that pic.
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Old Apr 23, 2009 | 06:33 PM
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I dont know, but they do not look the same, the bulge near the base is larger on the right one
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Old Apr 23, 2009 | 06:45 PM
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Originally Posted by 1SLwLS1
I dont know, but they do not look the same, the bulge near the base is larger on the right one
True, but I dont think that is part of the valve seal...looks like they are sitting on top of the retainers or a shim to keep the spring from eating out the aluminum head to me.

Take a look at this link to a new set.
http://speed-eng.com/store/ls1-valve...ls-p-8473.html

Look like gen 1 SBC/BBC stuff ive used a thousand times to me...its been awhile since ive put on LS seals but they didnt look like the ones in the pic, thats for sure.
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Old Apr 23, 2009 | 08:33 PM
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they are the same shape and the metal is part of them so the spring doesn't eat into the aluminum, The rubber material is different.
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Old Apr 23, 2009 | 09:36 PM
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I just put LS6 springs in an 01 TA 2 weeks ago.

Valve seals were Fel-Pro #SS70945. I think they were $30. That is for seals only, no seats. Yours look like they have the seats on them.

Black are intake, Brown are exhaust.
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Old Apr 23, 2009 | 09:51 PM
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Ive pulled apart many stock heads and black are on the intake, the redish brown are always on the exhaust.

I couldnt tell you why, but thats what I have seen.
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Old Apr 23, 2009 | 09:56 PM
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Awesome, that's what i thought. Thanks guys.
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Old Apr 23, 2009 | 09:58 PM
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The brown ones are a diffferent type of rubber that can take the exhaust heat.

Why aren't they supplied as a set of 16 brown ones? Cost.

Colour difference is so you can tell which are which.
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Old Apr 23, 2009 | 10:09 PM
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Originally Posted by eseibel67
The brown ones are a diffferent type of rubber that can take the exhaust heat.
Thats exactly what I assumed, because it only makes sense. But I havent really read it anywhere creadible.
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