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stock valve spring and retainer?????

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Old Dec 8, 2006 | 09:19 PM
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stock valve spring and retainer?????

Are the stock valve spring retainers titanium? Because I took my head apart and discoverd this.
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Old Dec 9, 2006 | 11:58 AM
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No
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Old Dec 9, 2006 | 02:16 PM
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anyone got a pic of a stock spring and retainer?
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Old Dec 9, 2006 | 02:37 PM
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Originally Posted by xspsi4
anyone got a pic of a stock spring and retainer?
https://www.evolutionm.net/forums/sh...2&postcount=15
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Old Dec 9, 2006 | 06:07 PM
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What are the stock retainers made from?? They arent steel like a dsm. Thanks for the pic as well.
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Old Dec 9, 2006 | 09:31 PM
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+1
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Old Dec 11, 2006 | 03:01 PM
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anyone??
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Old Dec 11, 2006 | 05:41 PM
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They're aluminum.
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Old Dec 12, 2006 | 04:45 PM
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aluminum??????????? but why.
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Old Dec 12, 2006 | 07:07 PM
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I told Mitsu they should do it and they did!

Aluminum is a lightweight alloy, I imagine thats why. Lightweight retainers mean they can run a slightly "softer" spring, increasing engine efficiency by not having to constantly compressor a valvespring w/ a higher spring rate.

Similar principals as why they used hollow camshafts. It takes less energy to rotate them.
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