Hooker Super Competition Headers - 2-1/8 in Primary - 3-1/2 in Collector - Black Paint - Big Block Chevy - GM A-Body 1968-72 4386XXXBK 4L 4V Aluminum and Cast

4L 4V Aluminum and Cast Iron Block Engines

255 lph Pump

063 in Bore

Clayton Machine Works makes high quality billet aluminum exterior trim

and that means maximum power

Hooker Super Competition Headers - 2-1/8 in Primary - 3-1/2 in Collector - Black Paint - Big Block Chevy - GM A-Body 1968-72 4386XXXBK 4L 4V Aluminum and CastHooker Headers Super Comp Header 2265HKR Black Finish Full Length Tube 2 1 8 in. x 36 in. OD Collector Size 3. 5 in. OD Collector Length 10 in. Port Shape Round Long Tube Lengths Long Transition Collectors Monstrous Low Mid Range Torque Keep Top End Horsepower Provides Finest Fit Most Durable Design Available Vehicle Applications: 1968 1972 Chevrolet Chevelle 1971 1972 GMC Sprint 1968 1972 Chevrolet El Camino Hooker holds to its claim of the