Isky Cams Endurance Plus Dual Valve Springs (Natural/Silver/Orange) - 1.560" O.D. 931022 Hex style pit sockets with GMC Sierra 1500 07

Isky Cams Endurance Plus Dual Valve Springs (Natural Silver Orange) 1.560" O.D. 931022 Hex style pit sockets with GMC Sierra 1500 07 Hex style pit sockets with a built in extension prevent extension and socket from separating during wheel changes Grade 8 hardware and driveline angle corrections (where applicable)Vehicle Applications: 1973 1987 Chevrolet C10 4" Rear DropVehicle Applications: 1973 1987 Chevrolet C10 4" Rear Drop The final phase of testing is accomplished when the newly dyno tested cams and components are coordinated with the best stock and performance equipment into racing cars and boats as well as performance and stock street machines 480 lb in Spring Rate