The Pro Dual Valve Springs are a "must-have" upgrade when running bigger lift cams and higher RPM's. With 75lbs of seat pressure at a 1.400" install height and open pressure of 215lbs (at .450" lift), they will work perfectly with any naturally aspirated or low boost application (0-20 lbs of boost). These springs are rated up to 8,000 RPM and will accommodate cam lifts up to .455".
NOTE: Sold as a set of (24). Make sure your valvetrain match correctly, failure to do so could result in engine damage.
Contact our Tech Support Line for further information at 928-855-6341.
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