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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 #: H5679178
  • Mfr #: 79178
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1974-1981 Plymouth Trailduster Headers - Hedman - Hedman Elite Ultra-Duty, Metallic ceramic coated, Steel, 4-1, 49-state legal - no CA shipments, Minor modifications required

  • Product Details
  • Manufacturer Info
  • Extended Warranty
  • Related Products
  • Fitment Info
HEDMAN ELITE ULTRA-DUTY HEADERS, CERAMIC METALLIC-COATED -- 49-state legal; Not for sale or use in California; Cannot be shipped to California addresses; 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; Full-length style; Round head port; Coated with Hedman's premium ceramic-metallic substance that protects the headers against harsh elements and withstands temperature up to 1400 degrees Fahrenheit; This coating keeps more heat inside the tubes to speed up the exhaust flow, providing better performance and cooler underhood temperatures; Made in USA; Modification to stock exhaust required to retain catalytic converter; Will not fit with late model hi-torque starter.
  • Series: Hedman Elite Ultra-Duty
  • Material: Steel
  • Design: 4-1
  • Color/Finish: Metallic ceramic coated
  • 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: 1.63 in.
  • Primary Tube Wall Thickness: 18-gauge
  • Warranty: Lifetime Hedman limited warranty
  • Fit note: 4WD, A-Type Engine Only, Except With Late Model Hi-Torque Starter, A-Type Engine Only, Except With Late Model Hi-Torque Starter
This product fits the following Plymouth Trailduster submodels
  • 1981-1981: Base; All Engines;
  • 1974-1980: Base; 8 Cyl 5.2L;
  • 1974-1980: Base; 8 Cyl 5.9L;