Single Exhaust Valve
Compatible with: Ford 429 (Enginetech V1977NA)
Nominal Stem Diameter: 3/8 inches
ET Stem Diameter: 0.3708 inches
Standard Head Diameter: 1.672 inches
ET Head Diameter: 1.672...
Single Exhaust Valve
Compatible with: Subaru 2.5L (Enginetech EM4445)
Nominal Stem Diameter: 0.2150 inches
ET Stem Diameter: 0.2150 inches
Standard Head Diameter: 1.102 inches
ET Head Diameter: 1...