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F1044P 2.055" X 5.000" Intake Ferrea Competition Plus Hollow Stem Valves Fits: Chevy LS1 F1022P 2.020" X 4.900" Intake Ferrea Competition Plus Hollow Stem Valves Fits: Chevy LS1 F1002P 1.625" X 5.160" Exhaust Ferrea Competition Plus Hollow Stem Valves Fits: SB Chevy 11/32"
Ferrea 2.055" Intake Chevy LS1 Ferrea 2.020" Intake Chevy LS1 Ferrea 1.625" Exhaust SB Chevy 11/32"
F1061P 2.190" X 5.300" Intake Ferrea Competition Plus Hollow Stem Valves Fits: SB Chevy 11/32" F1021P 1.600" X 4.915" Exhaust Ferrea Competition Plus Hollow Stem Valves Fits: Chevy LS1 F1222P 2.200" X 5.400" Intake Ferrea Competition Plus Valves Fits: SB Chevy 11/32"
Ferrea 2.190" Intake SB Chevy 11/32" Ferrea 1.600" Exhaust Chevy LS1 Ferrea 2.200" Intake SB Chevy 11/32"
F1043P 2.055" X 4.900" Intake Ferrea Competition Plus Hollow Stem Valves Fits: Chevy LS1 11571-8  1.625" X 5.121" Exhaust Manley Severe Duty Valves Fits: SB Chevy 11/32" F1010P 1.625" X 5.060" Exhaust Ferrea Competition Plus Hollow Stem Valves Fits: SB Chevy 11/32"
Ferrea 2.055" Intake Chevy LS1 11571-8 1.625" Exhaust SB Chevy 11/32" Ferrea 1.625" Exhaust SB Chevy 11/32"
F1009P 2.080" X 4.960" Intake Ferrea Competition Plus Hollow Stem Valves Fits: SB Chevy 11/32" F1145P 1.560" X 4.960" Exhaust Ferrea Competition Plus Valves Fits: SB Chevy 11/32" F1098P 1.625" X 4.915" Exhaust Ferrea Competition Plus Hollow Stem Valves Fits: Chevy LS1
Ferrea 2.080" Intake SB Chevy 11/32" Ferrea 1.560" Exhaust SB Chevy 11/32" Ferrea 1.625" Exhaust Chevy LS1
F1011P 1.625" X 4.960" Exhaust Ferrea Competition Plus Hollow Stem Valves Fits: SB Chevy 11/32" F1094P 1.500" X 4.960" Exhaust Ferrea Competition Plus Hollow Stem Valves Fits: SB Chevy 11/32" F1133P 1.650" X 5.400" Exhaust Ferrea Competition Plus Valves Fits: SB Chevy 11/32"
Ferrea 1.625" Exhaust SB Chevy 11/32" Ferrea 1.500" Exhaust SB Chevy 11/32" Ferrea 1.650" Exhaust SB Chevy 11/32"
1.600" X 5.020" Exhaust GRV HP Series Valves Fits: SB Chevy 11/32" F1117P 2.100" X 5.010" Intake Ferrea Competition Plus Valves Fits: SB Chevy 11/32" 1.500" X 4.910" Exhaust GRV HP Series Valves Fits: SB Chevy 11/32"
HP 1.600 +.100" Exhaust Valve Ferrea 2.100" Intake SB Chevy 11/32" HP 1.500 Exhaust Valve