What rpm's on stock heads

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Apr 18, 2005 | 11:47 AM

heatz

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Joined: Nov 2003

Posts: 127

From: Bath, NY

What rpm's on stock heads

I was wondering what you can run for rpm's on stock heads. Right now my car is shifting around 6800 rpm's. Am I going to have any problems?

Apr 18, 2005 | 01:36 PM

97Z-M6

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Joined: Mar 2002

Posts: 2,058

From: near waco tx.

Re: What rpm's on stock heads

i wouldnt go over 6200 or 6300 the springs arent stong enough to keep from valve float at 6800 rpm and you may have piston to valve contact. this is all a maybe. but not me.

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