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  • In Stock
  • Ships out in 1-2 business days
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  • Set of 2
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  • Part #: H5668604
  • Mfr #: 68604
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1978-1980 Buick Regal Headers - Hedman - Hedman Stepped, Black, Steel, 4-1, 49-state legal - no CA shipments, Minor modifications required

  • Product Details
  • Manufacturer Info
  • Extended Warranty
  • Related Products
  • Fitment Info
HEDMAN STEPPED EXHAUST HEADERS, STEEL, BLACK-PAINTED -- 49-state legal; Not for sale or use in California; Cannot be shipped to California addresses; 1.5 in. to 1.63 in. tube diameter, 18-gauge tube wall thickness, 3 in. flange collector, 0.25 in. standard head flange; Premium gasket and installation hardware included; Shorty style; Round head port; Improves combustion efficiency; Adds torque throughout entire torque range; Increases horsepower output; Provides quicker acceleration times; Improves fuel efficiency; A must have for any towing or wide open throttle application; Made in USA; Modification to stock exhaust required to retain catalytic converter; Must modify rotary A/C bracket; Will fit with angle plug heads.
  • Series: Hedman Stepped
  • Material: Steel
  • Design: 4-1
  • Color/Finish: Black
  • Emissions: 49-state legal - no CA shipments
  • Product Fit: Minor modifications required
  • Quantity Sold: Set of 2
  • Anticipated Ship Out Time: 1-2 business days
  • Collector Attachment Style: Flange
  • Collector Diameter: 3 in.
  • Head Flange Style: Standard
  • Head Flange Thickness: 0.25 in.
  • Head Port Shape: Round
  • Includes: Premium gasket, installation hardware
  • Number of Cylinders: 8
  • Primary Tube Diameter: 1.5-1.63 in.
  • Primary Tube Wall Thickness: 18-gauge
  • Warranty: Lifetime Hedman limited warranty
  • Fit note: Automatic Transmission
This product fits the following Buick Regal submodels
  • 1978-1980: Base; 8 Cyl 5.0L;
  • 1978-1980: Limited; 8 Cyl 5.0L;