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12898-8 2.250" Intake BB Chevy 5/16" Ferrea 2.000" Intake SB Chevy 11/32" Ferrea 1.625" Exhaust SB Chevy 11/32"
Ferrea 2.080" Intake SB Chevy 11/32" Ferrea 1.650" Exhaust SB Chevy 11/32" Ferrea 2.055" Intake SB Chevy 11/32"
Ferrea 2.125" Intake SB Chevy 11/32" Ferrea 1.650" Exhaust SB Chevy, BB Ford 429-460, & Cleveland 5/16" Ferrea 1.500" Exhaust SB Chevy 11/32"
Ferrea 2.055" Intake SB Chevy 11/32" Ferrea 1.600" Exhaust SB Chevy 11/32" Ferrea 2.250" Intake SB Chevy 11/32"
Ferrea 31.5 mm Exhaust Valves BMW M50 / M51 / M52 Ferrea 2.125" Intake SB Chevy 11/32" Ferrea 29 mm Exhaust Valves ACURA B17A1, B18C1 / C3 & HONDA B16A1 / A3
Ferrea 2.080" Intake SB Chevy 11/32" Ferrea 30.9 mm Exhaust Valves AUDI 1.8T / 2.7T / 4.2L & VOLKSWAGEN 1.8T Ferrea 1.600" Exhaust SB Chevy 11/32"