dual valve springs - CLASS RACER FORUM

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dual valve springs

01-28-2014, 02:31 PM

Jody Lang

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Join Date: Mar 2002

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Re: dual valve springs

Quote:

Originally Posted by Ed McLawhorn Jr.

Jody, it's a set of heads I bought used prep by layer. The spring currently on heads are the manley nextek 221447 spring. spec (350# at 2.0 installed ht.)

Ed

And you're only getting 35-40 runs out of the Nexteks?

I was told by a reputable Class engine builder that some have had problems with the doubles.

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