Thread: Mopar heads
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Old 03-25-2009, 11:38 PM   #4
treessavoy
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Default Re: Mopar heads
Quote:
Originally Posted by Shawn Blair View Post
I don't know about IHRA but they are legal in NHRA with a 1.60 exhaust valve. Shawn

The problem is that they come with a 1.74 exhaust, can I put new seats in them so I can use the smaller 1.60's?
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