Hi-Tech Racing Products, High Performance Dual Valve Springs
Style: Pacaloy Dual
Outer O.D.: 1.374"
Closed Pressure: 110 @ 1.880"
Open Pressure: 345 @ 1.330"
Coil Bind: 1.270"

Isky Performance Valve Springs
Style: Single with Damper
Outer O.D.: 1. 260"
Closed Pressure: 130 @ 1.750'
Open Pressure: 320 @ 1.200"
Coil Bind: 1.130"

Isky Performance Valve Springs
Style: Dual with Damper
Outer O.D.: 1. 530"
Closed Pressure: 135 @ 1.875"
Open Pressure: 380 @ 1.250"
Coil Bind: 1.160"