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Standard Duty HTC Coated Full-Length Headers 1978-79 Malibu/El Camino/Monte Carlo 283-400
InfoVehicle Info Needed
HEDMANPART NUMBER: 500-66317

Standard Duty HTC Coated Full-Length Headers 1978-79 Malibu/El Camino/Monte Carlo 283-400

$52599
ShippingShips on Nov 05, 2026
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$8300
Metallic Ceramic-Coated Long Tube Headers for 1964-1989 Small Block Chevy Passenger Car [265-400 ci]

555-300100

Metallic Ceramic-Coated Long Tube Headers for 1964-1989 Small Block Chevy Passenger Car [265-400 ci]

$44299

GM Cars
    Standard Duty HTC Coated Full-Length Headers
  • 1978-79 Malibu/El Camino/Monte Carlo 283-400
  • 1978-87 GM Regal, Cutlass, Grand Prix 283-400
  • 1-1/2" Tube, 3" Collector

  • Vehicles equipped with large piston AC compressors require the use of bracket #500-20110
  • Without smog injection or injection heads
  • Might be necessary to remove Z-bars on SS models
  • Must modify rotary A/C bracket
  • Includes parts necessary to retain emission devices (1975-79 vehicles, including production date to 12-31-79 registered as 1980, only non-feedback systems are 50-state legal)
  • Modification to stock exhaust required to retain catalytic converter
Part TypeHeader
BrandHEDMAN
Package Height8.25
Package Width16.5
Package Length29.0
Weight27.0 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 StyleFull-length
Cross Over Pipe IncludedNo
Catalytic Converter(S) IncludedNo
Primary Tube Diameter1.5 in (38.1 mm)
Vendor Part Number66317
Package Qty1
Package TypeEA
No Questions
No Reviews

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