Made in USA
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 11/03/2026
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

Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing long and MID-LENGTH tube headers for Pontiac models for decades. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your vehicle's exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.

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These headers have a high temperature POLISHED-SILVER ceramic finish that resists corrosion, and can withstand temperatures up to 1400 degree F. Each set includes a pair of header gaskets, header flange bolts and collector bolts. No collector gasket is needed. Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.

Made in the USA

Features:

  • Coating offers protection up to 1400°.
  • Won't chip, peel, or "blue" like chrome.
  • Superior heat insulation.
  • Increased exhaust velocity for more power.

NOTE: Installing coated headers on an engine during the break-in period will cause discoloration. The use of factory manifolds or an old set of headers is recommended while breaking in an engine.

Part TypeHeader
Product LineHedman HTC Hi-Tech Coated Headers
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

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