Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

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Valve Spring

GENERAL SPECIFICATIONS
Valve Spring Compression Pressure at Specified Height (Lbs)
Intake 190-210 at 1.20 74-82 at 1.78
Exhaust 190-210 at 1.20 76-84 at 1.60
Valve Spring Free Length
Intake 52.324 mm (2.06 inch)
Exhaust 47.452 mm (1.88 inch)
Valve Spring Assembled Height
Intake 44.45 - 45.974 mm (1.75 - 1.81 inch)
Exhaust 40.132 - 41.656 (1.58 - 1.64 inch)
Valve Spring Out of Square 1.98 mm (0.078 inch)
Tappet Gap Allowable [a] 1.803-4.343 mm (0.071-0.171 inch)
Tappet Gap Desired [a] 2.311-3.385 mm (0.091-0.151 inch)


[a] Measured at valve stem with hydraulic lifter collapsed