Single Intake Valve
Compatible with: Pontiac 4.9L 301 (Enginetech V1822)
Nominal Stem Diameter: 11/32 inches
ET Stem Diameter: 0.3419 inches
Standard Head Diameter: 1.720 inches
ET Head Diameter: 1...
Single Exhaust Valve
Compatible with: Ford 4.9L 300 (Enginetech V2123)
Nominal Stem Diameter: 11/32 inches
ET Stem Diameter: 0.3419 inches
Standard Head Diameter: 1.559 inches
ET Head Diameter: 1...
Single Exhaust Valve
Compatible with: Ford 3.9L 240 & 4.9L 300 (Enginetech V1885)
Nominal Stem Diameter: 11/32 inches
ET Stem Diameter: 0.3418 inches
Standard Head Diameter: 1.559 inches
ET Head...