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Generation III Internal Engine
1997-2006 LS1 | LS6
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Old 02-26-2004, 06:15 PM   #1
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Default Going rates for valve job 2.02/ 1.60

I got a few rates from local speed shops around my area (Northern VA). I had one shop tell me that it would be a flatout $385, and the seats would not have to be replaced, just cut. The shop my heads are right now said $275, then they call me back and told me the seats would have to be replaced since it's over sized and would be $500! Not sure what to do! The shop that had the flat rate of $385 is a Machine Shop only, and the other is a speed shop.

I heard the biggest size valves you can go on a ls1 is 2.02/ 1.60 without changing the seats. Is there any truth to this? What have other people been charged for the same set-up? Any help would be great. Thanks...Chris
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Old 02-28-2004, 09:03 AM   #2
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The biggest on a stock seat is 2.02 and 1.57 take your heads to Gil Thompson in Manassas you can find him in 411 he uses a serdi seat cutter with radius cutters just had a set done awesome job same depth all identical
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Old 03-08-2004, 01:04 PM   #3
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I am going to get 2.055/1.6 valves and do the porting (cleanup the runners) myself. Merkel Racing in New York will do a 5-angle valve job, hog out the intake inserts, and backcut (30deg.) the valves for about $200 (dont have the exact prices with me)

From what they say, the 2.055 is the largest you can go.
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Old 03-09-2004, 03:56 AM   #4
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I had 2.02/1.6 and the seats didn't have to be replaced.
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Old 03-09-2004, 03:56 AM
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