Single Intake Valve
Compatible with: GM 3.5L 3.9L OHV (Enginetech V4430)
Nominal Stem Diameter: 8.00 mm
ET Stem Diameter: 0.3136 inches
Standard Head Diameter: 1.870 inches
ET Head Diameter: 1.870...
Single Exhaust Valve
Compatible with: GM 3.5L & 3.9L OHV (Enginetech V4429)
Nominal Stem Diameter: 8.00 mm
ET Stem Diameter: 0.3135 inches
Standard Head Diameter: 1.523 inches
ET Head Diameter:...