BTR Platinum LS9 .660 Lift Dual Valve Spring Kit

The BTR Platinum LS9 Dual Valve Spring Kit (.660" Lift) is purpose-built to meet the unique valvetrain demands of GM LS9 supercharged engines, delivering the spring control and durability required for high-lift camshafts and elevated RPM operation.

Engineered specifically for the LS9 platform, this complete dual spring kit provides consistent valve motion, improved valvetrain stability, and reduced valve float under extreme boost and aggressive cam profiles. Every component is precision-matched to work as a system, making this kit ideal for high-horsepower street, track, and race LS9 builds where reliability is critical.

With support for up to .660" valve lift, the BTR Platinum LS9 spring package ensures accurate valve control while maintaining proper installed height and long-term durability in demanding supercharged applications.

BTR Platinum LS9 .660 Lift Dual Valve Spring Kit

• Dual Polished Valve Springs
• Steel Valve Spring Retainers
• Stock .505" ID × .060" Thick Standard Locators
• Black Valve Seals
• Valve Locks

VALVE SPRING SPECIFICATIONS

• Seat Pressure: 155 lbs @ 1.780"
• Open Pressure: 380 lbs @ 1.180"
• Open Pressure (Max): 400 lbs @ 1.130"
• Coil Bind Height: 1.070"
• Maximum Valve Lift: .660"

• Length: 12.000"
• Width: 3.000"
• Height: 4.000"
• Weight: 8.0 lbs.

FITMENT 

• Engine Type: 2009-2013 GM LS9

BRIAN TOOLEY RACING PART NUMBER | SK006/0560/BB

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