Made in USA
Standard Duty HTC Coated Shorty Headers 1964-94 GM Passenger Car 283-400
InfoVehicle Info Needed
HEDMANPART NUMBER: 500-66609

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

$68499
ShippingShips on Sep 07, 2026
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GM Cars
    Standard Duty HTC Coated Shorty Headers
  • 1964-94 GM Passenger Car 283-400
  • D-Port
  • 1-5/8" Tube, 3" Collector

  • Without smog injection or injection heads
  • Will fit angle plug heads (Chevy aluminum only)
  • Must modify rotary A/C bracket
  • Shorty with maximum ground clearance
  • Not legal for sale or use in California
  • Modification to stock exhaust required to retain catalytic converter
  • Not applicable or intended for street or highway use (legal only for racing vehicles which may never be used on a highway)

    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

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeHeader
BrandHEDMAN
Package Height10.0
Package Width18.0
Package Length40.0
Weight20.0 PG
Part CategoryPerformance Parts
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 Number66609
Package Qty1
Package TypeEA
No Questions
No Reviews

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