Howards Cams Electro Polished Performance 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 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 Mechanical Flat Tappet Valve Springs
Style: Dual with Damper
Outer O.D.: 1.435"
Closed Pressure: 135 @ 1.680"
Open Pressure: 390 @ 1.190"
Coil Bind: 1.055"

Howards Cams Hyd./Mech. Flat Tappet & Hydraulic Roller Valve Springs
Style: Dual
Outer O.D.: 1.465"
Closed Pressure: 122 @ 1.650"
Open Pressure: 353 @ 1.100"
Coil Bind: .950"

Max Effort™ Roller Valve Springs
Style: Dual
Outer O.D.: 1.437"
Closed Pressure: 175 @ 1.750"
Open Pressure: 400 @ 1.150"
Coil Bind: 1.050"

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"

Howards Cams Hydraulic Roller/Mechanical Flat Tappet Valve Springs
Style: Dual
Outer O.D.: 1.437"
Closed Pressure: 145 @ 1.880"
Open Pressure: 325 @ 1.250"
Coil Bind: 1.150"

Howards Cams Hydraulic Roller/Mechanical Flat Tappet Valve Springs
Style: Dual
Outer O.D.: 1. 437"
Closed Pressure: 120 @ 1.875"
Open Pressure: 425 @ 1.110"
Coil Bind: 1.150"

Howards Cams Electro Polished Performance Valve Springs
Style: Dual
Outer O.D.: 1.437"
Closed Pressure: 145 @ 1.750"
Open Pressure: 315 @ 1.150"
Coil Bind: 1.025"

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"

Howards Cams Hydraulic Roller Valve Springs
Style: Dual
Outer O.D.: 1.514"
Closed Pressure: 145 @ 1.900"
Open Pressure: 360 @ 1.300"
Coil Bind: 1.270"

Howards Cams Electro Polished Performance Valve Springs
Style: Dual
Outer O.D.: 1.514"
Closed Pressure: 145 @ 1.900"
Open Pressure: 360 @ 1.300"
Coil Bind: 1.150"