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Valve spring

Item
Measurement
Qualification
Standard or New
Service Limit
Valve spring
Free length
L12B1
Intake
51.17 mm (2.014 in.)
Exhaust
57.26 mm (2.254 in.)
L13Z1
Intake
51.17 mm (2.014 in.)
———
Exhaust
57.26 mm (2.254 in.)
———
L15A7
Intake
48.55 mm (1.911 in.)
———
Exhaust
54.52 mm (2.146 in.)
———