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Standard Duty HTC Coated Shorty Headers 1964-94 GM Passenger Car 283-400
InfoVehicle Info Needed
HEDMANPART NUMBER: 500-66601

Standard Duty HTC Coated Shorty Headers 1964-94 GM Passenger Car 283-400

$53099
ShippingShips on Oct 14, 2026
Lowest PriceLowest Price Guarantee

GM Cars
    Standard Duty HTC Coated Shorty Headers
  • 1964-94 GM Passenger Car 283-400
  • 1-5/8" Tube, 3" Collector

  • With A.I.R. system
  • Includes parts necessary to retain 49-state emission devices
  • Modification to stock exhaust required to retain catalytic converter
  • Must modify rotary A/C bracket
  • Shorty with maximum ground clearance
  • Not legal for sale or use in California on pollution-controlled vehicles
  • EO#D167-27

    Applications
  • 1964-73 Chevrolet Chevelle
  • 1964-83 Chevrolet Malibu
  • 1964-87 Chevrolet El Camino
  • 1967-81 Chevrolet Camaro
  • 1968 Chevrolet Chevy II
  • 1969-79 Chevrolet Nova
  • 1970-87 Chevrolet Monte Carlo
  • 1971-72 Chevrolet Biscayne, Brookwood, Townsman
  • 1971-81 Chevrolet Bel Air
  • 1971-94 Chevrolet Caprice & Impala
  • 1973-76 Chevrolet Laguna
  • 1978-87 Buick Regal/Oldsmobile Cutlass/Pontiac Grand Prix
Part TypeHeader
BrandHEDMAN
Package Height8.5
Package Width16.7
Package Length29.3
Weight23.65 PG
Part CategoryPerformance Parts
Carb Eo NumberD-167-26 (pdf)
Header FinishSilver ceramic coated
Tube DirectionDown Swept
QuantitySold as a pair
Bolts/Studs IncludedYes
Transmission Mount IncludedNo
Header MaterialSteel
Gaskets IncludedYes
Weld-UpNo
Collector AttachmentBall and socket flange
Flange StyleStandard
TunedNo
Collector Diameter3 in (76.2 mm)
Motor Mounts IncludedNo
Part FitmentSemi Universal
Reducers IncludedYes
ApplicationAutomotive
Primary Tube Gauge18-gauge
Header StyleShorty
Cross Over Pipe IncludedNo
Catalytic Converter(S) IncludedNo
Primary Tube Diameter1.625 in (41.3 mm)
Vendor Part Number66601
Package Qty1
Package TypeEA
No Questions
No Reviews
Please click here to download the instructions PDF file

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Some parts are not legal for use in California or other states with similar laws / regulations
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