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Generation III Internal Engine 1997-2006 LS1 | LS6
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Lap, replace, or can they be fixed with a valve job?

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Old 01-16-2021, 10:51 PM
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Default Lap, replace, or can they be fixed with a valve job?

All the exhaust valves on 3 sets of heads look like this

Could probably just clean these off
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Old 01-17-2021, 12:25 AM
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Clean them up, and have them ground. They'll be fine.
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Old 01-17-2021, 01:04 AM
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Originally Posted by CattleAc
Clean them up, and have them ground. They'll be fine.
I agree. The edges show enough margin for a proper valve job.
You might consider a good multi-angle valve and seat grind to gain a little more power, but that's your call.
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