Chevy/GMC Truck & Van Chevy Small Block
For 69-72 Blazer, Jimmy, Yukon 4WD - 520-16527
For 73-91 Blazer, Jimmy, Yukon 4WD - 520-16528
For 73-87 1/2, 3/4 & 1 Ton Trucks 4WD - 520-16526
Driver side mount will require 520-10927 and 520-10928
Passgr side mount will require 520-10922 and 520-10928
Included Items Note: Bolts and Gaskets Included, Reducers required
Port Shape: SAP
Emissions Compatibility: Not Street Legal Except Pre-1974
All Budget Headers are NOT Created Equally!
Hooker's Competition Series Headers come in your choice of finishes and are engineered to perform at a reasonable price! To let your engine really breath Hooker utilized 16 gauge (.049'' thick) steel tubing attached to long transition style collectors! Giving you a serious increase in flow over other brand headers without a loss in the backpressure most engines need to perform! After years of testing, Hooker has discovered that a machined 5/16'' header flange offers enough flex to hold the gasket tight to each exhaust port, and enough rigidity to keep everything properly tied together.
Black Painted (Part numbers do not have a suffix)
Metallic Ceramic Coating (Part numbers have a -1 suffix)
Stainless Steel (Part numbers have a -2 suffix)
"Darksides" Black Ceramic Coating (Part numbers have a -3 suffix)
Titanium Ceramic Coating (Part numbers have a -4 suffix)
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.