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Home >> Subaru >> 2023 >> WRX Base, Automatic CVT Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical System >> General Description >> Specification >> Valve Spring
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Valve Spring

Free length (reference) mm (in) Standard 43.28 (1.7039)
Tension/spring height N (kgf, lbf)/mm (in) Set Standard 182 - 210 (18.56 - 21.41, 40.92 - 47.22)/34.50 (1.3583)
Lift Standard 483 - 533 (49.25 - 54.35, 108.60 - 119.84)/24.80 (0.9764)
Squareness (at height of 30 mm (1.1811 in)) Standard 2.5°, 1.4 mm (0.0551 in) or less