Pro Dual Valve Springs
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 100lbs 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. This installs in the factory head without modification. Coil bind Height for these springs is 22.5mm / .886".
NOTE: Sold as a set of (8).
Related Kits:
- Dual Spring & Titanium Retainer Kit, see Part #: 1023210
- Dual Spring & Chromoly Retainer Kit, see Part #: 1023211
- Pro Camshaft Kit w/Titanium Retainers, see Part #: 1020000
- Pro Camshaft Kit w/Chromoly Retainers, see Part #: 1020007
Contact our Tech Support Line for further information at 928-575-2174.
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Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501.
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The proper set of matched valve train components will eliminate most valve train problems. The LC Pro Dual Valve Springs will control your valves up to 8,500 rpm, with a valve lift of .550. You must use Pro Titanium Retainers (Part # 1023003) or Pro Chromoly Retainers (Part # 1023007) with these springs. The installed height of the Pro Dual Valve Springs is 1.630 - 1.635. Spring seat pressure should be 100 psi.
Install using a .015 Hardened Spring Shim (Part #1023132) to protect the cylinder head. Always check the valve spring for coil bind. Minimum .090 suggested clearance. For higher lift cams it is recommended to use hardened valve keepers (Part #1023090). For matched valvetrain components use the PRO Cam Kit (part #1020000). Note: These springs will not work with stock spring retainers.
Valves springs 
