5.4L & 5.8L MODULAR GT SUPERCAR AND SHELBY PERFORMANCE VALVE SPRING KIT - STEEL RETAINERS

No machining necessary

Give added spring pressure needed for most aftermarket camshafts

Eliminate valve float to reduce the risk of any engine damage in high lift or RPM applications

Includes:

Livernois Motorsports Beehive Intake Springs (16)

Livernois Motorsports Beehive Exhaust Springs (16)

Steel retainers (32)

About Livernois Motorsports

Livernois Motorsports & Engineering has become best-known for revolutionary tuning and high-end performance products for late model Ford, Mopar and GM vehicles. The company is proud of its deep roots in the automotive and motorsports industry dating back to its original founding in 1949. Since then the company has expanded its product line to include tuning and performance components for desert racing, SCCA and drag racing. Livernois Motorsports is proud to engineer, test and manufacture its products in the USA.

Install Height: 1.730 Intake 1.575 Exhaust

Max. Valve Spring Lift: .600

Spring Pressure Closed: (Intake) 130lbs @ 1.630 (Exhaust) 140 @1.575

Spring Pressure Open: (Intake) 240lbs @ 1.130 (Exhaust) 260 @1.075

Coil Bind: .970

Retainer Material: Steel