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JBA Tight Tuck headers for 1957–1974 Chevrolet Corvette with 265–400 small-block Chevy engines come with 1-5/8" primaries and a silver coating. Their Tight Tuck profile is intended to provide improved clearance in tight engine bays while offering better flow than stock manifolds; the Firecone collector is used to enhance torque. Construction features include machined 3/8" flanges, oversized ports, mandrel-bent tubing and reinforced collector domes, plus factory-style emission connections and hardware.
JBA 57-74 Chevrolet Corvette 265-400 SBC 1-5/8in Primary Silver Ctd Tight Tuck Header
