Valve springs

jrosey said

Closed (seat) Pressure: Approx. 130 pounds @ 1.875" installed height
Valve Spring Open Pressure Approx. 330 pounds @ 1.275" (.600" lift.)
Valve Spring Inner Diameter: 1.050"
Valve Spring Maximum Lift: .510"
Valve Spring Coil Bind Height: 1.130"
Valve Spring Outer Diameter: 1.550"
Valve Spring Free Height 2.400"
Valve Spring Installed Height: 1.875"
Valve Spring Wire Diameter: .202"
Valve Spring Number of Coils: 5.5

The cam is a mp 484

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Great, but how are they set up on YOUR heads? Which retainers and locks are you using? What are the actual installed heights on your heads? Stock retainers are too small inside and outside and will not locate and control the springs properly. The springs won't locate in the head spring pockets right. The pressures might be a little high at the stock head/valve combination of 1.86" installed height, but the big problem is they are going to dance all around in the spring pockets and under the retainers. Gonna look like 16 girls in hula skirts dancing under the valve covers.