Single Exhaust Valve
Compatible with: GM & Chevrolet 348 (Enginetech V2237)
Nominal Stem Diameter: 3/8 inches
ET Stem Diameter: 0.3715 inches
Standard Head Diameter: 1.656 inches
ET Head...
Single Exhaust Valve
Compatible with: GM 2.3L 138 (Enginetech V2265)
Nominal Stem Diameter: 7.00 mm
ET Stem Diameter: 0.2744 inches
Standard Head Diameter: 1.240 inches
ET Head Diameter: 1.240...