Flange Style: Round Port Flange. Tube Outside Diameter: 1 5/8. Reducer: 3" to 2 1/2". The item "NEW 1964-89 CHEVY LONG TUBE HEADERS, CHROME PLATED, SBC, IMPALA, BEL AIR, CAMARO" is in sale since Friday, November 9, 2018.This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Exhaust\Exhaust Manifolds & Headers". The seller is "beasyvan" and is located in Carol Stream, Illinois. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia, South africa, New Zealand, Egypt, Reunion.