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Nitro Black Chevrolet Small Block Performance Exhaust Valves; Chevrolet Small Block Nitro Black Stainless Exhaust Valves Head Diameter 1.500 Inch Stem Diameter 11/32 Inch Installed Height Stock Overall Length 4.910 Inch Tip Length .250 Inch No Undercut

Engine Pro Performance Nitro Black Valves 01-3001-100 Specifications Type Exh Head Diameter 1.600 Stem Diameter 11/32" Installed Height +100 Overall Length 5.010 Tip Length .250 Applies to: Chevrolet Small Block Description: 21-4N High Stre

Engine Pro Performance Nitro Black Valves 01-3001 Specifications Type Exh Head Diameter 1.600 Stem Diameter 11/32" Installed Height Stock Overall Length 4.910 Tip Length .250 Applies to: Chevrolet Small Block Description: 21-4N High Strengt

Nitro Black Chevrolet Big Block Performance Exhaust Valves; Chevrolet Big Block Nitro Black Stainless Exhaust Valves Head Diameter 1.880 Inch Stem Diameter 3/8 Inch Installed Height Stock Overall Length 5.352 Inch Tip Length .250 Inch

Engine Pro Performance Nitro Black Valves 01-3014-100 Specifications Type Exh Head Diameter 1.880 Stem Diameter 11/32" Installed Height +100 Overall Length 5.452 Tip Length .250 Applies to: Chevrolet Big Block Description: 21-4N High Streng

Valves - Nitro Black

Valves - Nitro Black

Nitro Black Chevrolet LS Bead Lock Performance Exhaust Valves; Chevrolet LS Bead Lock Nitro Black Stainless Exhaust Valves Head Diameter 1.570 Inch Stem Diameter .313 Inch Installed Height Stock Overall Length 4.890 Inch Tip Length .160 Inch

Engine Pro Performance Nitro Black Valves 01-3201 Specifications Type Exh Head Diameter 1.600 Stem Diameter 0.313" Installed Height Stk Overall Length 4.890 Tip Length .160 Applies to: Chevrolet LS1-- Bead Lock Description: 21-4N High Stren