Michigan Motorsports .660" Dual Valve Spring Kit with Titanium Retainers
For LS Based Engines 4.8 5.3 5.7 6.0 6.2 LS1 LS2 LS3 LQ4 LM7
Includes Polished Dual Springs, Titanium Retainers, Seals with Integrated Spring Seat, and Valve Keeper Locks
American-Made PAC Racing Polished Dual Valve Springs Rated to .660" Lift
Integrated Seat/Seal are easier to Install than conventional dual spring seals.
*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"