C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

TPI engine Valve Stem Seals

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Old Feb 19, 2023 | 09:31 PM
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From: Allen Park Mi
Default TPI engine Valve Stem Seals

Technically, this is for a Camaro, but I’m working on an 85 TPI engine.

we are swapping valve stem seals -

the OE intake and exhaust look different

the OE exhaust was just a maroon, hardend plastic
shell combined with the Valve stem o-ring

the intake was a spring clamp rubber seal - along with the valve-stem o-ring


the replacement kit is just 16 soft rubber seals amd o-rings - none have the spring clip -

i do not want to pull the heads.

suggestions?

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Old Feb 20, 2023 | 02:57 AM
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Unless you are pulling the heads for another reason, I wouldn't pull the heads just to do valve stem seals. Youtube will have videos on how to do it without pulling the heads. Might have to invest in a different spring compressor than the ones used with the heads off. Will be a huge time saver.
The intake and exhaust seals are different as you stated in your post. If possible I would return the set you have and get the correct set.
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