When you decide to take a walk on the wild side and exceed the .660” limit of our popular Platinum Spring Kit, the next step is our .685” Spring Kit. A higher spring rate and titanium retainers will ensure valvetrain stability with radical camshafts
Note: This is a drop-in kit for LS9 engines ONLY.
Spring Specs
170 lbs @ 1.800"
380 lbs @ 1.180"
450 lbs @ 1.115
Coil bind @ 1.000"
Kit includes:
Dual springs (Qty 16)
LS9 titanium retainers (Qty 16)
Locators for stock valve guides (Qty 16)
LS valve seals (Qty 16)
7 degree valve locks (Qty 32)
