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Seat Pressure at Installed Height (lbs.)
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Open Pressure (lbs.)
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Damper Spring Included
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- Yes (1)
Spring Rate (lbs./in.)
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- 663 lbs./in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Inside Diameter of Inner Spring (in.)
- 0.706 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.788 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.

PAC Racing 1300 Series Circle Track Valve Springs

1.0 out of 5 stars 1 Customer Reviews

PAC Racing 1300 Series circle track valve springs are designed for engines that require longevity and performance to successfully finish the race. They incorporate the latest in heat-treating technology and innovative, dynamic surface-enhancement processes. PAC Racing 1300 Series circle track valve springs are the only option when it comes to optimal performance for your race car!

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