Valve Spring Specifications

1985 Chevrolet Step Van P20, 5.7 M, Automatic, 475/M40SECTION Valve Spring Specifications
VALVE SPRINGS SPECIFICATIONS

Application In. (mm)
Free Length N/A
Pressure (1)
Valve Closed 80 @ 1.81 (36 @ 46)
Valve Open 230 @ 1.39 (105 @ 35)
(1) Lbs. @ In. (Kg @ mm).
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.