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Hooker Super Competition Headers 2123-1HKR Headers, Competition, Long Tube, Steel, Ceramic Coated, Chevy, 427, 454, Pair

SKU: HOK2123-1HKR

Headers

Hooker Super Competition Headers 2123-1HKR Headers, Competition, Long Tube, Steel, Ceramic Coated, Chevy, 427, 454, Pair

SKU: HOK2123-1HKR

Headers
A$3,733.40
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

With Hooker Super Competition headers, the objective has always been to make the maximum horsepower possible and put it at the optimum point in the power curve. Hooker Super Competition headers feature tuned primary tubes to create optimum pressure between the intake and exhaust systems. Hooker Super Competition headers include premium exhaust gaskets and new mounting bolts. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment.

Part Type

Headers

Data: v4.2 - Upd: 2026-09-29 03:34:46

Specifications

Product Attributes - Brand
Hooker Headers
Product Attributes - Manufacturer's Part Number
2123-1HKR
Product Attributes - Part Type
Headers
Product Attributes - Product Line
Hooker Super Competition Headers
Product Attributes - UPC
700414049656
Product Attributes - Header Style
Long tube one-piece
Product Attributes - Header Material
Steel
Product Attributes - Primary Tube Outside Diameter (in.)
1 7/8 in.
Product Attributes - Header Color
Silver ceramic coated
Product Attributes - Flange Style
Standard
Product Attributes - Weld-Up
No
Product Attributes - Cylinder Head Port Shape
SAP
Product Attributes - Collector Attachment
3-bolt flange
Product Attributes - Collector Diameter (in.)
3.00
Product Attributes - Collector Reducers Included
No
Product Attributes - Tuned
Yes
Product Attributes - Primary Tube Gauge
18-gauge
Product Attributes - Flange Thickness (in.)
0.31 in.
Product Attributes - Bolts/Studs Included
Yes
Product Attributes - Gaskets Included
Yes
Product Attributes - Crossover Pipe Included
No
Product Attributes - Catalytic Converter(s) Included
No
Product Attributes - Motor Mounts Included
No
Product Attributes - Transmission Mount Included
No
Product Attributes - Quantity
Sold as a pair.

Reference Information

Brand Name/s Hooker Headers
StreetFX SKU hok2123-1HKR
SFX Item ID 5013359
Supplier Item Code 5013359
Manufacturer SKU 2123-1HKR
Manufacturer UPC 700414049656
Alternative References HKR2123-1HKR

Compatibility

Application Data
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1963
    Ending Year1981
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size6.5L/396
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes4 - Exhaust systems can also be fabricated using either Hooker Super Competition mufflers, Aero Chamber mufflers, Maximum Flow mufflers, Super Competition turbo mufflers, Competition turbo mufflers, or header-type Hooker mufflers. 184 - Factory-style big block frame stands and motor mounts must be used to ensure proper engine locations and header fit.
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1963
    Ending Year1981
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size6.6L/402
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes4 - Exhaust systems can also be fabricated using either Hooker Super Competition mufflers, Aero Chamber mufflers, Maximum Flow mufflers, Super Competition turbo mufflers, Competition turbo mufflers, or header-type Hooker mufflers. 184 - Factory-style big block frame stands and motor mounts must be used to ensure proper engine locations and header fit.
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1963
    Ending Year1981
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.0L/427
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes4 - Exhaust systems can also be fabricated using either Hooker Super Competition mufflers, Aero Chamber mufflers, Maximum Flow mufflers, Super Competition turbo mufflers, Competition turbo mufflers, or header-type Hooker mufflers. 184 - Factory-style big block frame stands and motor mounts must be used to ensure proper engine locations and header fit.
  • MakeCHEVROLET
    ModelCORVETTE
    SubmodelBASE
    Beginning Year1963
    Ending Year1981
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Power SteeringYes
    Power Brakes (application)Yes
    Air ConditioningYes
    Standard Transmission Column ShiftNo
    Standard Transmission Floor ShiftYes
    Automatic Transmission Column ShiftNo
    Automatic Transmission Floor ShiftYes
    Footnotes4 - Exhaust systems can also be fabricated using either Hooker Super Competition mufflers, Aero Chamber mufflers, Maximum Flow mufflers, Super Competition turbo mufflers, Competition turbo mufflers, or header-type Hooker mufflers. 184 - Factory-style big block frame stands and motor mounts must be used to ensure proper engine locations and header fit.

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