Hedman Hedders 69016 Standard Duty HTC Coated Headers Tube Size 1.625 in. Collector Size 3 in. Mid Length Tube Incl. Headers/Gaskets/3 Bolt Adapter/Mtg. Hardware Polished Ceramic Metallic Standard Duty HTC Coated Headers Hedman Hedders 69016 67-87 GM P/U Header 283-400 Mid Length 1-5/8