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Hooker Competition Long Tube Headers, Painted 6921HKR

Hooker Competition Long Tube Headers, Painted 6921HKR
$667.99 ea
NEWARRIVING SOONEstimated Ship Date 03/18/2024 (If Ordered Today)30 Available from HOLLEY PERFORMANCE PRODUCTS as of 02/25/2024
Model: 4009215
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 1
Hooker Competition headers offer the best value in the high performance header market. Designed for the value-conscious buyer, 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 better performance
  • Mandrel-bent tubing for smooth exhaust flow
  • Light weight & sturdy 16 gauge tubing
  • Long transition collector for decreased back pressure
  • 5/16” machined flanges for a perfect seal
  • Industry’s best welds for durability
  • designed for easy, trouble-free fit
  • All necessary hardware included for a complete installation
Fits 2V heads only. 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. NOTE: Fits 2V heads only. NOTE: Will not fit vehicles equipped with power steering. NOTE: Hooker long tube headers do not come with header reducers.
Installation Notes:
Fits 2V heads only. 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. NOTE: Fits 2V heads only. NOTE: Will not fit vehicles equipped with power steering. NOTE: Hooker long tube headers do not come with header reducers.

Downloads:

Download Name File Size
6921hkrrev3.pdf225.51KB

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
Ford Mustang 1971 5.8L / 351 / V8 Competition Header; Black Finish; Tube Size 1.75 x 28 in. OD; Collector Size 3 in. OD; Collector Length 8 in.; Port Shape Same As Port;
Ford Mustang 1972 5.8L / 351 / V8 Competition Header; Black Finish; Tube Size 1.75 x 28 in. OD; Collector Size 3 in. OD; Collector Length 8 in.; Port Shape Same As Port;
Ford Mustang 1973 5.8L / 351 / V8 Competition Header; Black Finish; Tube Size 1.75 x 28 in. OD; Collector Size 3 in. OD; Collector Length 8 in.; Port Shape Same As Port;
Mercury Cougar 1971 5.8L / 351 / V8 Competition Header; Black Finish; Tube Size 1.75 x 28 in. OD; Collector Size 3 in. OD; Collector Length 8 in.; Port Shape Same As Port;
Mercury Cougar 1972 5.8L / 351 / V8 Competition Header; Black Finish; Tube Size 1.75 x 28 in. OD; Collector Size 3 in. OD; Collector Length 8 in.; Port Shape Same As Port;
Mercury Cougar 1973 5.8L / 351 / V8 Competition Header; Black Finish; Tube Size 1.75 x 28 in. OD; Collector Size 3 in. OD; Collector Length 8 in.; Port Shape Same As Port;

Specifications:

Bolt Size 3/8-16 x 3/4, 3/8-16 x 3/4
CARB (California) Compliant No
Collector Diameter 3.00 inch
Emission Code 4
Engine Small Block Ford
Header Finish Black Paint
Header Style Long Tube
Part Type Exhaust Header
Primary Tube Dia. 1-3/4 inch
Product Type Headers
Proposition 65 www.P65Warnings.ca.gov
Tube Material Mild Steel

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Hooker Competition Long Tube Headers, Painted 6921HKR:

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