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 Hydraulic Roller/Mechanical Flat Tappet Valve Springs
Style: Dual
Outer O.D.: 1.500"
Closed Pressure: 145 @ 1.940"
Open Pressure: 425 @ 1.250"
Coil Bind: 1.100"

Electro Polished Performance Valve Springs
1.539
1.125
1.000
0.760
140 @ 1.940
425 @ 1.250
413
0.730

Electro Polished Performance Valve Springs
145 @ 1.750
315 @ 1.150
Polished
Hyd. Roller
Mech. FT

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 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"

Electro Polished Performance Valve Springs
Dual
145 @ 1.900
335 @ 1.300
Polished
Hyd. Roller
Mech. FT

Electro Polished Performance Valve Springs
0.760 ID
135 @ 1.750
285 @ 1.250
Electro Polished

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"

GM Gen III (LS1/2/6) Dual Springs
1.305 Dia.

Howards Cams LS1/2/6 Dual Valve Springs
Style: Dual
Outer O.D.: 1.305"
Closed Pressure: 145 @ 1.800"
Open Pressure: 385 @ 1.150"
Coil Bind: 1.100"

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