The Pro Dual Valve Springs are a "must have" upgrade when running cam lift over .455" or when sustaining a constant 5,000rpm or higher. With 110lbs of seat pressure and open pressure of 210lbs (at .500" lift) they will work perfectly with any naturally aspirated or boosted applications. These springs are rated up to 8,500 RPM and will accommodate cam lifts up to .550"! You must use Pro Titanium or Chromoly Retainers with the Pro Dual Valve Springs. Installs in factory head without modification. Coil bind Height for these springs is 22.5mm / .886".
Related Parts:Dual Spring & Titanium Retainer Kit: 1023210Dual Spring & Chromoly Retainer Kit: 1023211 Pro Camshaft Kit w/Titanium Retainers: 1020000Pro Camshaft Kit w/Chromoly Retainers: 1020007
Contact our Tech Support Line for further information at 928-855-6341.
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