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Home >> Chevrolet >> 1990 >> Step Van 7.4 N, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 7.4L V8 - VIN [N] >> Engine Specifications >> Valve/Valve Spring Specifications

Valve/Valve Spring Specifications

VALVES & VALVE SPRINGS SPECIFICATIONS

Application Specification
Face Angle 45°
Valve Springs
Free Length 2.12 (53.8)
Installed Height 1.797 (45.64)
Pressure (1)
Valve Closed 74-86 @ 1.80 (33-39 @ 45.7)
Valve Open 195-215 @ 1.40 (89-98 @ 35.6)
(1) Lbs. @ In. (Kg @ mm).