Patriot Exhaust H8063 1-5/8" Tri-5 Exhaust Header for Small Block Chevrolet 55-57 The popular 55-57 Chevy passenger car headers for small or big block and LS1 / LS6 swaps Durable 18-gauge tubing Comes complete with gaskets, header bolts and collector reducers Available in three finishes; uncoated for individual customizing, chrome finish for that show quality shine or with Patriot's very popular metallic ceramic coating Limited one year warranty