Made in USA
Standard Duty HTC Coated Full-Length Headers 1964-72 Pontiac GTO/Le Mans/Tempest 326-455
InfoVehicle Info Needed
HEDMANPART NUMBER: 500-35266

Standard Duty HTC Coated Full-Length Headers 1964-72 Pontiac GTO/Le Mans/Tempest 326-455

$63499
ShippingShips on 12/01/2026
Lowest PriceLowest Price Guarantee

Pontiac Cars
    Standard Duty HTC Coated Full-Length Headers
  • 1964-72 Pontiac GTO/Le Mans/Tempest 326-455
  • 1-3/4" Tube, 3" Collector

  • Without smog injection or injection heads
  • Some heads require drilling and tapping of end holes
  • Not applicable or intended for street or highway use (legal only for racing vehicles which may never be used on a highway)

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

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 Height9.0
Package Width18.0
Package Length38.0
Weight27.0 PG
Part CategoryPerformance Parts
Header FinishPainted
Tube DirectionDown Swept
QuantitySold as a pair
Bolts/Studs IncludedYes
Cylinder Head Port ShapeD-port
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 Diameter1.75 in (44.5 mm)
Vendor Part Number35266
Package Qty1
Package TypeEA

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