Bolt-on horsepower and torque with these short-tube headers by Drake Automotive. These headers are designed to fit 66-77 Broncos with 289/302 motors with ample clearance for most modified suspensions. They are engineered to make strong power and torque throughout the RPM range with smooth mandrel-bent 1-1/2" primaries and 2.5" collectors. Each header is manufactured with heavy-duty features like extra-thick 3/8" laser cut flanges to guard against warping and heavy-wall 16 ga tubing for maximum durability. Made from 304 Stainless Steel which ensures these will last for many years to come. This header system includes high quality hardware, premium laminated metal core gaskets and heavy duty ball and socket flanges for a leak proof installation. Also includes "O2 Ports in Collectors for EFI conversion. Brand new in box. Blow out priced at $490!