Flowtech Upright Headers - 11585FLT AP 5" outlet diameters

5" outlet diameters

1x Fuel Hose C (Braided Stainless Steel)

7L V8 289 CID (Does NOT fit 289 CID Shelby Models with 715 cfm Holley Carb

1x Main Fuel Line B (3/8 inch Diameter)

Intermediate Brake Line For 99 1/2 -01 F-250-F-550 Super Duty AWABS Gas Crew Cab/Long Bed Steel

Flowtech Upright Headers - 11585FLT AP 5" outlet diametersOverview: These Flowtech upright derby style headers fit the 2. 8L, 3. 1L and 3. 4L GM V6 engines with both round port or D port style exhaust ports. 1 1 2 in. and 1 5 8 in. mandrel bent primary tubes provide consistent tubing diameters for smooth flow of the exhaust pulses and increase the cylinder scavenging of the exhaust to improve engine breathing. The headers are constructed from heavy duty 16 gauge 409 stainless steel tubing for increased