BTR LSx 0.685" Dual Spring Kit

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. This kit does NOT fit LS9 engines.

Kit includes:

SP010-16 Dual Spring (qty 16)

SR001-16 Titanium Retainers (qty 16)

SLS135-16 (bronze guide) or SLS136-16 (stock or powder metal guide) (qty 16)

VL7°8MM-32 Locks (qty 32)

VS LS KIT Valve Seals (qty 16)

Spring specs:

•162 lbs @ 1.820"

•170 lbs @ 1.800"

•178 lbs @ 1.780"

•380 lbs @ 1.180"

•450 lbs @ 1.115"

•409 lb/in Rate

•Coil bind @ 1.000"