Pacaloy Mechanical Roller Springs
1.574 Dia
w/Special Processing
265 @ 2.000
705 @ 1.200
1.150

Pro-Alloy Mechanical Roller Valve Springs
Style: Dual with Damper
Outer O.D.: 1.625"
Closed Pressure: 240 @ 2.000"
Open Pressure: 685 @ 1.250"
Coil Bind: 1.150"

Electro Polished Pro-Alloy Mechanical Roller Valve Springs
Style: Dual with Damper
Outer O.D.: 1.625"
Closed Pressure: 230 @ 2.100"
Open Pressure: 620 @ 1.380"
Coil Bind: 1.150"

1200 Series Drag Racing Springs
1.625 Dual
0.850 Lift
Set of 16

Pacaloy Mechanical Roller Springs
1.625 Dia.
w/Special Processing
275 @ 2.000
810 @ 1.150
1.100

1200 Series Drag Springs
1.625 Dual
280 @ 2.100
847 @ 1.150
629 Rate
1.100 Coil Bind
0.900 Max Lift

Electro Polished Pro-Alloy Mechanical Roller Valve Springs
Style: Dual
Outer O.D.: 1.640"
Closed Pressure: 250 @ 2.000"
Open Pressure: 800 @ 1.150"
Coil Bind: 1.070"

Manley, NexTek Roller Valve Springs
Style: Dual
Outer O.D.: 1.640"
Closed Pressure: 250 @ 2.000"
Open Pressure: 800 @ 1.150"
Coil Bind: 1.070"

Comp Cams, Hi-Tech Roller Valve Springs
Style: Dual
Outer O.D.: 1.645"
Closed Pressure: 253 @ 2.050"
Open Pressure: 711 @ 1.250"
Coil Bind: 1.150"

Pacaloy Mechanical Roller Springs
1.62 Dia.
275 @ 2.000 Seat
810 @ 1.150 Open
1.100 Coil Bind

Comp Cams, Hi-Tech Roller Valve Springs
Style: Triple
Outer O.D.: 1.645"
Closed Pressure: 338 @ 2.000"
Open Pressure: 849 @ 1.250"
Coil Bind: 1.145"