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GPI – 1209x High RPM .750” Lift Valve Spring Kit for LT Engines (GPI-1209XLT-KIT)
$599.00
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- Top quality valve spring kit for hydraulic roller applications demanding increased spring pressure for valve-train control at extreme rpm.
- This kit utilizes PAC 1209x dual valve springs and BTR titanium retainers, locators, locks, and seals.
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Description
PAC Racing RPM Series valve springs were developed using all of the latest advancements from Circle Track and drag racing successes. This valuable, real-life research has been applied to new designs, which allow for performance increases that exceed all demands. RPM springs are made from quality materials and are available in different diameters and pressures to suit your specific camshaft profile.
Combined with quality BTR hardware, this spring package is our go-to upgrade for high-rpm hydraulic roller, stock rocker combinations (as seen in our Max Package 2.0). When paired with lightweight hollow stem or titanium intake valves, high-performance lifters, appropriate trunnion or shaft rocker upgrade, and appropriate setup, these springs are capable of adequate valve-train control at engine speeds approaching 8,000rpm.
Spring Specifications:
- 324” O.D.
- 800” installed height
- 160lbs seat pressure
- 485lbs open pressure (@.650” lift)
- 500lbs spring rate
- .750” max lift
- 1.000” coil bind
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