The BTR Platinum LS Dual Spring Kit pairs a dual valve spring with titanium retainers to support up to .660 in of valve lift on GM LS-series engines. This configuration uses .060 in locators and is a drop-in kit for 15-degree LS heads designed for use with stock rocker arms.
- Part Number: SK001/T/0560/BB
- Application: GM LS-Series, 15° Heads
- Max Valve Lift: .660 in
- Spring Type: Dual Spring (SP001-1)
- Spring Rate: 380 lb/in
- Spring Pressure: 155 lb @ 1.780 in installed / 380 lb @ 1.180 in / 400 lb @ 1.130 in open
- Coil Bind Height: 1.070 in
- Outer Diameter: 1.300 in
- Retainer Material: Titanium (SR001-1)
- Locator Thickness: .060 in
- Kit Includes: SP001-1 dual spring (qty 16), VL7°8MM-1 locks (qty 32), SR001-1 titanium retainers (qty 16), locators for stock or bronze guides (qty 16), VS LS valve seals (qty 16)
FAQ
What retainer material does this kit use?
The SK001/T/0560/BB uses titanium (SR001-1) retainers.
What is the difference between the /T and /S versions of SK001?
The /T suffix denotes titanium retainers, while the /S suffix denotes steel retainers. Both share the same spring, spring rate, coil bind, and outer diameter.
What is the maximum valve lift supported?
This kit supports up to .660 in of valve lift on GM LS-series engines.
Does this kit fit LS7 or LS9 heads?
It is a drop-in kit for 15-degree LS heads and will typically also work with LS7 heads when used with a .030 in shim (BTR part SS030). It does not fit LS9 engines; BTR's SK006 kit is designed for LS9 applications.
