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Valve Spring

WARNING: This page is about a different car, the 2020 Chrysler 300 and 2019 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
VALVE SPRING

DESCRIPTION SPECIFICATION
  Metric Standard
Spring Force (valve closed) 435.0 N +/- 22.0 N @ 45 mm 97.8 lbs +/- 5.0 lbs. @ 1.771 in.
Spring Force (valve open) 1077.0 N +/- 48.0 N @ 32.6 mm. 242.0 lbs. +/- 11 lbs. @ 1.283 in.
Free Length (approx). 55.6 mm 2.189 in.
Number of Coils 7.95
Wire Diameter 4.95 - 4.1 mm 0.194 - 0.161 in.
Installed Height (spring seat to bottom of retainer) 46.0 mm 1.81 in.