Single Intake Valve
Compatible with: GM 6.6L 403 Diesel (V4364)
Nominal Stem Diameter: 7.00mm
ET Stem Diameter: 0.2735 inches
Standard Head Diameter: 1.295 inches
ET Head Diameter: 1.299...
Single Exhaust Valve
Compatible with: GM 6.5L 395 Diesel (Enginetech V2679S)
Nominal Stem Diameter: 3/8 inches
ET Stem Diameter: 0.3718 inches
Standard Head Diameter: 1.535 inches
ET Head Diameter:...
Single Exhaust Valve
Compatible with: GM & Chevrolet 409 (Enginetech V2386)
Nominal Stem Diameter: 3/8 inches
ET Stem Diameter: 0.3710 inches
Standard Head Diameter: 1.719 inches
ET Head...
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...
Single Exhaust Valve
Compatible with: GM 3.1L 189 (Enginetech V3543)
Nominal Stem Diameter: 8.00 mm
ET Stem Diameter: 0.3130 inches
Standard Head Diameter: 1.425 inches
ET Head Diameter: 1.425...