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LS1 Valve Stem Seals

troybowd

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Jan 29, 2015
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Hi all.

I have a 2002 VY SV8 Commodore LS1 with standard 241 heads, standard beehive springs and valves. I believe it is a cathedral port design.

Car is at nearly 300K and gives a puff of blue smoke every so often, but only on startup, so I am looking to replace valve stem seals.

Problem is that I can't determine whether I need to buy the 2 piece seals or the 1 piece top-hat style ones.

I would like to run the 1 piece top-hat style if possible. The ones I'm looking at buying are GM part numbers:
Part # 12482062 (exhaust X8)
Part # 12482063 (inlet X8)

Would these fit properly on my setup?
 
Last edited:

Dave6179

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I bought the one piece units from Summit Racing, cheaper than anywhere else.
 
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