Hi-Tech Racing Products LT-1/Z-28 Chev SB Valve Springs
Style: Single with Damper
Outer O.D.: 1.250"
Closed Pressure: 120 @ 1.700"
Open Pressure: 300 @ 1.250"
Coil Bind: 1.160"

Hi-Tech Racing Products Performance Springs
Style: Single with Damper
Outer O.D.: 1.265"
Closed Pressure: 115 @ 1.780"
Open Pressure: 340 @ 1.250"
Coil Bind: 1.160"

Hi-Tech Racing Products Performance Springs
Style: Dual
Outer O.D.: 1.440"
Closed Pressure: 140 @ 1.880"
Open Pressure: 320 @ 1.250"
Coil Bind: 1.150"

Hi-Tech Racing Products Performance Springs
Style: Dual with Damper
Outer O.D.: 1.437"
Closed Pressure: 130 @ 1.750"
Open Pressure: 285 @ 1.250"
Coil Bind: 1.150"

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"

Hi-Tech Racing Products Performance Springs
Style: Dual
Outer O.D.: 1.460"
Closed Pressure: 120 @ 1.875"
Open Pressure: 425 @ 1.110"
Coil Bind: 1.080"

Hi-Tech Racing Products Performance Springs
Style: Single with Damper
Outer O.D.: 1.535"
Closed Pressure: 125 @ 1.875"
Open Pressure: 350 @ 1.375"
Coil Bind: 1.200"

Hi-Tech Racing Products Performance Springs
Style: Single with Damper
Outer O.D.: 1.540"
Closed Pressure: 145 @ 1.880"
Open Pressure: 355 @ 1.250"
Coil Bind: 1.050"

Hi-Tech Performance, Mechanical Roller Valve Springs
Style: Dual with Damper
Outer O.D.: 1.625”
Closed Pressure: 205 @ 1.900"
Open Pressure: 680 @ 1.200"
Coil Bind: 1.125"

Hi-Tech Performance Mechanical Roller Valve Spring
Style: Dual with Damper
Outer O.D.: 1.625”
Closed Pressure: 205 @ 1.900"
Open Pressure: 680 @ 1.200"
Coil Bind: 1.125"