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Hooker Competition Long Tube Headers, Ceramic Coated 2457-1HKR

Hooker Competition Long Tube Headers, Ceramic Coated 2457-1HKR
Hooker Competition Long Tube Headers, Ceramic Coated 2457-1HKRHooker Competition Long Tube Headers, Ceramic Coated 2457-1HKRHooker Competition Long Tube Headers, Ceramic Coated 2457-1HKRHooker Competition Long Tube Headers, Ceramic Coated 2457-1HKRHooker Competition Long Tube Headers, Ceramic Coated 2457-1HKRHooker Competition Long Tube Headers, Ceramic Coated 2457-1HKR
$1,196.99 ea
NEWARRIVING SOONEstimated Ship Date 04/16/2026 (If Ordered Today)56 Available from HOLLEY PERFORMANCE PRODUCTS as of 04/02/2026
Model: 4008900
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
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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
  • Works with factory power steering, power brakes and air conditioning
Does not work with raised port heads. 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. Hooker long tube headers do not come with header reducers. Factory style big block frame stands and motor mounts must be used to ensure proper engine locations and header fit. Many aftermarket mount brands relocate motor location which causes the headers to hit certain components.
Installation Notes:
Does not work with raised port heads. 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. Hooker long tube headers do not come with header reducers. Factory style big block frame stands and motor mounts must be used to ensure proper engine locations and header fit. Many aftermarket mount brands relocate motor location which causes the headers to hit certain components.

Downloads:

Download Name File Size
2457hkrrev1.pdf194.16KB

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 Bel Air 1963 7.0L / 427 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Bel Air 1965 6.5L / 396 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Bel Air 1966 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Bel Air 1967 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Bel Air 1968 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Bel Air 1969 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Bel Air 1970 7.4L / 454 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Biscayne 1963 7.0L / 427 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Biscayne 1965 6.5L / 396 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Biscayne 1966 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Biscayne 1967 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Biscayne 1968 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Biscayne 1969 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Biscayne 1970 7.4L / 454 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Camaro 1967 6.5L / 396 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Camaro 1968 6.5L / 396 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Camaro 1969 6.5L / 396 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Caprice 1966 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Caprice 1967 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Caprice 1968 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Caprice 1969 6.5L / 396 / V8
7.0L / 427 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Caprice 1970 7.4L / 454 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Chevy II 1968 6.5L / 396 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Impala 1963 7.0L / 427 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Impala 1965 6.5L / 396 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Impala 1966 7.0L / 427 / V8
6.5L / 396 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Impala 1967 7.0L / 427 / V8
6.5L / 396 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Impala 1968 7.0L / 427 / V8
6.5L / 396 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Impala 1969 7.0L / 427 / V8
6.5L / 396 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Impala 1970 7.4L / 454 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Kingswood 1970 7.4L / 454 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Nova 1969 6.5L / 396 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Nova 1970 6.6L / 402 / V8
6.5L / 396 / V8		 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 in.; Port Shape Same As Port;
Chevrolet Townsman 1970 7.4L / 454 / V8 Competition Header; Metallic Ceramic Coating; Tube Size 2 x 27 in. OD; Collector Size 3.5 in. OD; Collector Length 10 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 3.50 inch
Emission Code 4
Engine Big Block Chevy
Header Finish Silver Ceramic
Header Style Long Tube
Part Type Exhaust Header
Primary Tube Dia. 2 inch
Product Type Headers
Proposition 65 www.P65Warnings.ca.gov
Tube Material Mild Steel

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