LS1 R/M 1.550 Exhaust Valve Exhaust Valve - Race Master - 1.550 in Head - 0.314 in Valve Stem - 4.923 in Long - Stainless - LS1 / LS2 - GM LS-Series - Set of 8

LS1 S/D 1.600 Exhaust Valves Exhaust Valve - 1.600 in Head - 0.3136 in Valve Stem - 4.923 in Long - Stainless - GM LS-Series - Set of 8

LS1 1.600 Exhaust Valve Exhaust Valve - LS1 - 1.600 in Head - 8 mm Stem - 4.907 in Long - Stainless - GM LS-Series - Each

BBC S/D 1.880in Exhaust Valve Exhaust Valve - Severe Duty - 1.880 in Head - 0.342 in Valve Stem - 5.422 in Long - Stainless - Big Block Chevy - Each

SBC S/D 1.500in Exhaust Valve Exhaust Valve - Severe Duty - 1.500 in Head - 0.342 in Valve Stem - 4.911 in Long - Stainless - Small Block Chevy - Each

SBC S/D 1.625in Exhaust Valve Exhaust Valve - Severe Duty - 1.625 in Head - 0.342 in Valve Stem - 5.565 in Long - Stainless - Small Block Chevy - Each