Pro HD Dual Valve Springs
(High RPM / Boost)
The Pro Dual Valve Springs are a "must-have" upgrade when running bigger lift cams and higher RPM's. With 100lbs of seat pressure 1.400" install height and open pressure of 225lbs (at .450" lift) they will work perfectly with any high boost application (20+ lbs of boost). These springs are rated up to 10,000 RPM and will accommodate cam lifts up to .515"!
NOTE: Sold as a set of (24). Make sure your valvetrain match correctly, failure to do so could result in engine damage.
- LC Engineering Pro Dual Springs require our spring seat shim, see Part #: 1023213.
- LC Engineering Pro Dual Springs require our titanium retainers, see Part #: 1023243.
- LC Engineering Pro Dual Springs require our hardened keepers, see Part #: 1023091.
- We also offer a Pro version of these springs for lower boost or naturally aspirated applications, see Part #: 1023216.
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- 1995-2004 5VZ 3.4L Engines