Syclone V6-262 4.3L Turbo (1991)
Valve: Specifications
Stem Diameter Standard Intake
0.3410-0.3417 in
Exhaust 0.3410-0.3417 in
Maximum Tip Refinish
Note: Grind only enough lo provide true surface. After
grinding valve stems, ensure sufficient clearance remains
between rocker arm & valve spring cap or rotator
Face Angle
45 deg
Margin
Intake
0.0315 in
Note: Minimum
Exhaust 0.0315 in