Elgin Performance Valve Springs
Style: Dual
Outer O.D.: 1.437"
Closed Pressure: 120 @ 1.800"
Open Pressure: 325 @ 1.250"
Coil Bind: 1.100"
Note: Set of 8 (2 sets required per 8 cylinder)

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: Dual with Damper
Outer O.D.: 1.437"
Closed Pressure: 130 @ 1.750"
Open Pressure: 285 @ 1.250"
Coil Bind: 1.150"

Howards Cams Hydraulic Flat Tappet Valve Springs
Style: Single with Damper
Outer O.D.: 1.437"
Closed Pressure: 100 @ 1.750"
Open Pressure: 235 @ 1.100"
Coil Bind: 1.050"

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"

Howards Cams Hydraulic Flat Tappet Valve Springs
Style: Dual
Outer O.D.: 1.435"
Closed Pressure: 105 @ 1.700"
Open Pressure: 320 @ 1.180"
Coil Bind: 1.120"

Howards Cams Electro Polished Performance Valve Springs
Style: Single with Damper
Outer O.D.: 1.437"
Closed Pressure: 110 @ 1.750"
Open Pressure: 235 @ 1.100"
Coil Bind: 1.050"

Howards Cams Hydraulic/Mechanical Flat Tappet Valve Springs
Style: Single with Damper
Outer O.D.: 1.485"
Closed Pressure: 105 @ 1.800"
Open Pressure: 288 @ 1.300"
Coil Bind: 1.250"

Grand National Street Roller Springs
Style: Dual with Damper
Outer O.D.: 1.437"
Closed Pressure: 185 @ 1.750"
Open Pressure: 365 @ 1.250"
Coil Bind: 1.100"

Howards Cams Hydraulic Roller Valve Springs
Style: Dual with Damper
Outer O.D.: 1. 437"
Closed Pressure: 135 @ 1.750"
Open Pressure: 285 @ 1.250"
Coil Bind: 1.125"

Howards Cams Hydraulic Roller/Mechanical Flat Tappet Valve Springs
Style: Dual
Outer O.D.: 1. 437"
Closed Pressure: 145 @ 1.750"
Open Pressure: 315 @ 1.150"
Coil Bind: 1.025"

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"