Valve springs

[Mike Pearson]

Originally Posted by Mike Taylor 3601

yes that will raise pressure,maybe time for a new set though install them to where they are .060'' from coil bind if they are 1409X will be about 425-450 like that.
Mike Taylor 3601

They are the PAC 1.500 double spring that sets up at 2.100. They are pretty old but trying to get a few more runs before a new set.

[Mike Pearson]

Originally Posted by Mike Pearson

They are the PAC 1.500 double spring that sets up at 2.100. They are pretty old but trying to get a few more runs before a new set.

They are the Pac 1332 spring. Any one know the rate on these springs.

[james schaechter]

I think everything you need is in the PAC web site

http://www.racingsprings.com/ValveSpringRateCalculator

[Mike Pearson]

Originally Posted by james schaechter

I think everything you need is in the PAC web site

http://www.racingsprings.com/ValveSpringRateCalculator

Thanks James. That's a nice tool. I never noticed that before on their website.