Michigan Motorsports .660" Dual Valve Spring Kit with Titanium Retainers | Fits 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS2 LS3 LS6 L92 LQ4 LQ9 L76 L99 LS Engines | High-Performance LS Upgrade

Upgrade Your LS Engine with the Michigan Motorsports .660" Dual Valve Spring Kit For high-performance LS builds, valve train stability is critical. Whether you're running aggressive camshafts, forced induction, or high RPM setups, the Michigan Motorsports .660" Dual Valve Spring Kit with Titanium Retainers is engineered to handle extreme stress and prevent valve float—ensuring peak performance and engine longevity. *Will not work on LS7, LS9, any Gen 5 LT1/4 engine applications, and most aftermarket cylinder heads with bronze guides Install Height: 1.810" Closed Spring Pressure: 160 lb. @ 1.810" Installed Height Open Spring Pressure: 415 lb. @ .660" lift Maximum Spring Lift: .660" Coil Bind 1.015"

• Direct Fitment for LS Engines – Compatible with LS1, LS2, LS3, LS6, L92, LQ4, LQ9, L76, L99, 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L V8s, making it an easy upgrade for street, track, and drag racing builds.
• .660" Dual Valve Springs for High Lift Cams – Engineered for aggressive cam profiles, ensuring superior valve control at extreme RPMs.
• Titanium Retainers for Lightweight Strength – Reduces valve train mass, allowing for quicker revs and improved durability under high-performance conditions.
• Built for Boosted & High RPM Applications – Designed for turbocharged, supercharged, and naturally aspirated LS engines, preventing valve float and maintaining engine efficiency.
• Proven Performance & Durability – Track-tested and trusted by professional racers and LS enthusiasts, ensuring long-lasting performance and maximum horsepower gains.