"SP" Series Dual Valve Springs with Damper (16) 1.530" OD ISK8205-SP Product:150LBS @ 1.900" Seat Pressure, 440LBS @ 1.300" Open Pressure, 1.150" Designed for competition 396-502 big-block

Designed for competition 396-502 big-block Chevys

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Chassis Stabilizer Storage Pouch20" W x 1 7/8" D x 4" H

"SP" Series Dual Valve Springs with Damper (16) 1.530" OD ISK8205-SP Product:150LBS @ 1.900" Seat Pressure, 440LBS @ 1.300" Open Pressure, 1.150" Designed for competition 396-502 big-block"SP" Series Dual Valve Springs with Damper (16) 1. 530" OD150LBS @ 1. 900" Seat Pressure, 440LBS @ 1. 300" Open Pressure, 1. 150" Coil Bind ISK8205 SP K8205 SP The "SP" series utilises "Hi Tensile" Chrome Silicon outer material. For applications with radical cams and or moderately high rpm, where traditional chrome silicon springs prove inadequate, the "SP" series is the next highest level of endurance. All "SP" series springs are Spintron Test Proven