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Valves: Go with OEM or OEM-"equivalent"

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Old Apr 30, 2013 | 09:19 PM
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Default Valves: Go with OEM or OEM-"equivalent"

There's a significant disparity between prices with OEM valves and OEM-equivalents. Is it worthy to spend the dough or would the cheaper ones suffice?

GMPartsDirect.com (OEM's)
Intake Valve: $15.67
Exhaust Valve: $14.94
Total: $244.88

RockAuto.com (Brand: Sealed Power)
Intake Valve: $4.53
Exhaust Valve: $7.86
Total: $99.12
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Old Apr 30, 2013 | 09:38 PM
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See if there is a way to get the valves priced as a set rather than individually. I was once quoted nearly $400 for LS7 lifters because the parts guy priced them individually.
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Old Apr 30, 2013 | 09:55 PM
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Originally Posted by KCS
See if there is a way to get the valves priced as a set rather than individually. I was once quoted nearly $400 for LS7 lifters because the parts guy priced them individually.
Good idea - didn't think about that. I checked and can't find a price for the set. I'm not sure if they sell them as a set or not.
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Old May 1, 2013 | 10:59 AM
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Originally Posted by KCS
See if there is a way to get the valves priced as a set rather than individually. I was once quoted nearly $400 for LS7 lifters because the parts guy priced them individually.
x2, this happens all the time
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Old May 1, 2013 | 08:41 PM
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GM valves are much better quality than aftermarket. Get them if you can.
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Old May 1, 2013 | 09:46 PM
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someone out there is throwing out OEM valves because they blindly believe they need bigger. meaning someone has some laying around.
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Old May 1, 2013 | 09:49 PM
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what valves are you after? i have a complete set of ls1 valves
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Old May 1, 2013 | 10:22 PM
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Originally Posted by JakeFusion™
GM valves are much better quality than aftermarket. Get them if you can.
No, that's not really true. There are plenty of problems with the OEM valves, like the tips cracking for example. The aftermarket makes valves better suited to take the abuse of more demanding engine combinations.
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Old May 1, 2013 | 10:25 PM
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Originally Posted by KCS
No, that's not really true. There are plenty of problems with the OEM valves, like the tips cracking for example. The aftermarket makes valves better suited to take the abuse of more demanding engine combinations.
Hmmm. Decisions, decisions. I think I would rather take that $240 and get some Manley's instead.

If anyone could find me a part number for a set of valves, that would be greatly appreciated.
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Old May 1, 2013 | 11:33 PM
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Originally Posted by KCS
No, that's not really true. There are plenty of problems with the OEM valves, like the tips cracking for example. The aftermarket makes valves better suited to take the abuse of more demanding engine combinations.
yes the guys at WCCH talked me into getting rid of my OEM valves and upgrading to a 1 piece Stainless Steel for the type of power and driving I want to do... (turbo build)
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Old May 2, 2013 | 12:03 AM
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Originally Posted by KCS
No, that's not really true. There are plenty of problems with the OEM valves, like the tips cracking for example. The aftermarket makes valves better suited to take the abuse of more demanding engine combinations.
That's true. Inconel exhaust for turbos, Ti or hollow-stem intake for use with large valves, etc. Based on QC tho, the GM valves are tough to beat.

If you want a set of stock replacement that aren't half bad, the Manley Racemaster work well, and may be slightly lighter. I don't think they are any cheaper.
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Old May 2, 2013 | 12:11 AM
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I wanted inconel for my build, richard and dave said it wasnt needed... no turbo car that drives on the street needs inconel valves were there exact words... plus they are a 2 piece valve by nature and are not as durable as a 1 piece valve is as far as long term abuse goes..
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Old May 2, 2013 | 12:20 AM
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Interesting. Yeah, for a street car a one-piece stainless is all you need unless you're running 30 PSI with very high EGT.
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Old May 2, 2013 | 12:29 AM
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yeah they saved me a couple hundred bucks lol I was dead set on them

Im stubborn when it comes to my car, even when talking with the pros..
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Old May 2, 2013 | 01:53 AM
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Originally Posted by Burken01
yes the guys at WCCH talked me into getting rid of my OEM valves and upgrading to a 1 piece Stainless Steel for the type of power and driving I want to do... (turbo build)
Originally Posted by Burken01
yeah they saved me a couple hundred bucks lol I was dead set on them

Im stubborn when it comes to my car, even when talking with the pros..
So what are these 1-piece stainless steel valves you are referring to?
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Old May 2, 2013 | 02:10 AM
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Ill email them and find out the part #

They were $220 for all 16

Stock size SS valves

101 gram intake
90.5 exhaust
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Old May 2, 2013 | 02:30 AM
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OP, probably a noob question, what size valve were you looking for?
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Old May 2, 2013 | 08:34 AM
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2.00/1.55 for a set of 243's I'll be sending out to AI.
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Old May 3, 2013 | 10:47 PM
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I used the Manley Racemaster valves with my heads. part #'s are 2.000 intake 11360-8 and 1.550 exhaust 11361-8
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Old May 4, 2013 | 11:23 AM
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Ok Richard finally emailed me with:

"We only install the parts we sell. He can go straight to our supplier. We use SI Valves and REV valves. You can find links to them from our links page on our website. The part numbers are as follows: 2.02" intake SL1170, 1.57" exhaust SL1169. Let me kow if you have any trouble Chris."
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