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Hooker Competition Shorty Header 7543-1HKR

Hooker Competition Shorty Header 7543-1HKR
$760.99 ea
NEWBackordered until 09/24/2021Out of stock at HOLLEY PERFORMANCE PRODUCTS as of 09/23/2021
Model: 4009869
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 1
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Hooker Competition headers offer the best value in the high performance header market. Designed for the value-conscious buyer who is running either a "stock" or "mildly-modified" engine, Hooker Competition headers offer premium features at a very competitive price. Made of durable 16 gauge mild steel tubing, the Hooker Competition header design utilizes a long transition collector to reduce back pressure and increase exhaust flow. A perfect sealing surface is assured with the 5/16" machined flanges, with welded O-ring seals. Experience has proven that this flange size is ideal to maintain header integrity and be pliable enough to seal each exhaust port. Tubing is mandrel-bent to maintain metal strength and provide consistent tube diameter at radii to maximize performance. Hooker Competition headers have a standard finish that features a heat-cured, high-heat-resistant paint. Optionally, the famous Hooker Ceramic Thermal Barrier Coating is available.
Features:
  • Tuned-Length Primary Tubes For Street Performance
  • Mandrel Bent Turbine For Smooth Exhaust Flow
  • Light Weight and Sturdy 16 Gauge Tubing
  • Long Transition Collector For Decreased Back Pressure
  • 5/16 in. Machined Flanges For A Perfect Seal
  • Industrys Best Welds For Durability
  • Designed For Easy Trouble Free Fit
  • Hardware Included
  • Works w/Factory Power Steering and Brakes
Holley Performance Emission Code 4: This part is legal for sale or use on Racing Use Only Vehicles. The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
Installation Notes:
Does not fit with angle plug heads or raised port heads. Will not work with close ratio steering boxes. Installation requires air conditioning bracket #10925HKR left side, 10926HKR right side. On 1979 and later vehicles with short compressors, use stock bracket. Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Hooker recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Hooker tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Hooker does not recommend the use of header wraps as this will void the warranty.
About Hooker

The Hooker line of Super Competition and Competition headers, mufflers and catback exhaust systems are the most complete on the market.

Downloads:

Download Name File Size
199r11872.pdf134.72KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Chevrolet Camaro 1975 5.7L / 350 / V8 Ceramic Coating; Tube 1.625 in.; Collector Size 3 in.; Port Shape Same As Port;Intended For Race Use Only
Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
Chevrolet Camaro 1976 5.0L / 305 / V8
5.7L / 350 / V8
Ceramic Coating; Tube 1.625 in.; Collector Size 3 in.; Port Shape Same As Port;Intended For Race Use Only
Fits w/Angle Plug Heads~Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
Chevrolet Camaro 1977 5.0L / 305 / V8
5.7L / 350 / V8
Ceramic Coating; Tube 1.625 in.; Collector Size 3 in.; Port Shape Same As Port;Intended For Race Use Only
Fits w/Angle Plug Heads~Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
Chevrolet Camaro 1978 5.0L / 305 / V8
5.7L / 350 / V8
Ceramic Coating; Tube 1.625 in.; Collector Size 3 in.; Port Shape Same As Port;Intended For Race Use Only
Fits w/Angle Plug Heads~Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
Chevrolet Camaro 1979 5.0L / 305 / V8
5.7L / 350 / V8
Ceramic Coating; Tube 1.625 in.; Collector Size 3 in.; Port Shape Same As Port;Intended For Race Use Only
Fits w/Angle Plug Heads~Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
Chevrolet Camaro 1980 5.0L / 305 / V8
5.7L / 350 / V8
Ceramic Coating; Tube 1.625 in.; Collector Size 3 in.; Port Shape Same As Port;Intended For Race Use Only
Fits w/Angle Plug Heads~Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty
Chevrolet Camaro 1981 5.0L / 305 / V8
5.7L / 350 / V8
Ceramic Coating; Tube 1.625 in.; Collector Size 3 in.; Port Shape Same As Port;Intended For Race Use Only
Fits w/Angle Plug Heads~Breaking In An Engine w/Ceramic Coated Headers Will Damage Coating~Breaking In An Engine w/Ceramic Coated Headers Will Void All Warranties~Header Wraps Can Cause Header Tube Cracks/Rust From Excessive Heat/Moisture~Hooker Does Not Recommend The Use Of Header Wraps/Will Void The Warranty

Specifications:

Application Automotive
Coated Finish Metallic Ceramic
Collector Tube Size 3.000 in.
Emission Code 4
Engine Chevrolet Small Block Gen I
Engine Make/Size Chevy Small Block (283-400)
Header Finish Silver Ceramic
Header Style Shorty
Material Mild Steel
Part Type Exhaust Header
Port Shape Same As Port/Can Be Matched
Primary Tube Dia. 1-5/8 inch
Tube Diameter 1.625 in.

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