Single Intake Valve
Compatible with: GM 3.8L 231 (Enginetech V3214)
Nominal Stem Diameter: 8.00 mm
ET Stem Diameter: 0.3134 inches
Standard Head Diameter: 1.794 inches
ET Head Diameter: 1.794...
Single Intake Valve
Compatible with: GM & Buick 3.8L 231 (Enginetech V4422)
Nominal Stem Diameter: 8.00 mm
ET Stem Diameter: 0.3133 inches
Standard Head Diameter: 1.830 inches
ET Head Diameter:...
Single Exhaust Valve
Compatible with: GM 3.8L 231 (Enginetech V3223)
Nominal Stem Diameter: 8.00 mm
ET Stem Diameter: 0.3132 inches
Standard Head Diameter: 1.526 inches
ET Head Diameter: 1.526...