300ZX V6-2960cc SOHC Turbo (VG30ET) (1984)
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Valve Guide: Specifications
Outside Diameter
Intake
0.4340 - 0.4344 in
Exhaust
0.4733 - 0.4738 in
Inside Diameter
Intake
0.2756-0.2763 in
Exhaust
0.3150-0.3154 in
Interference Fit of Valve Guide
0.0011 - 0.0023 in