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GM Perf Valve Cover 25534399

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Old 05-14-2015, 02:14 PM
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Default GM Perf Valve Cover 25534399
Has anyone tried to run these valve covers with Crower shaft rockers?

http://www.jegs.com/i/Chevrolet-Perf...34399/10002/-1
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Old 05-14-2015, 03:17 PM
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I would use billet valve cover spacers so you can keep the OE PCV. They come in different heights to fit your needs.
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Old 05-14-2015, 04:51 PM
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I'm not too worried about PCV in my full race engine with 4 stage dry sump.
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Old 05-14-2015, 06:16 PM
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They the flat style crower ones?? If so then i'd say yes, should be fine.

FWIW only rockers that have issues with tall covers are the jesel mohawks on gm heads (which i have, lol). Very tall at the back and angle out

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Old 05-18-2015, 09:41 AM
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They are the stainless crowers on GM LSA castings.
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