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Headers for 1965 Pontiac GTO

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Hedman Standard Duty HTC Headers

Hedman Standard Duty HTC Headers are designed to be extremely durable. The ceramic-metallic substance these headers are coated with provides resistance to harsh conditions and extreme temperatures.

Features:

  • Withstands temperature up to 1400 degrees Fahrenheit
  • Retains more heat inside the tubes to speed up exhaust flow
  • Provides better performance and cooler under hood temperatures

Notes:

  • Will not fit engines with precats
Hedman Headers, Hedman Standard Duty HTC, Steel, 3-1
$537.25 List Price $1,227.14 Save $689.89 Availability: In Stock
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  • SKU#: H5628146
  • Color/Finish: Ceramic coated
  • Emissions: 49-state legal - no CA shipments
  • Product Fit: Minor Modifications
  • Quantity Sold: Kit
  • Anticipated Ship Out Time: 7-8 business days
  • Collector Attachment Style: Flange
  • Collector Diameter: 3 in.
  • Head Flange Style: Standard
  • Head Flange Thickness: 0.25 in.
  • Includes: Premium gasket, installation hardware
  • Number of Cylinders: 8
  • Port Shape: Round
  • Primary Tube Diameter: 1.63-2 in.
  • Primary Tube Wall Thickness: 18-gauge
  • Warranty: Lifetime Hedman limited warranty with 5-year limited warranty on coating
see more Fits the following 1965 Pontiac GTO submodels:
  • 8 Cyl 5.3L | Base
  • 8 Cyl 6.4L | Base

Hedman Standard Duty Headers

Hedman Standard Duty Headers are precision engineered using CNC mandrel bending equipment to ensure accurate tube diameter and length, bringing about reliable performance.
Hedman Headers, Hedman Standard Duty, Steel, 4-1
$267.40 List Price $641.42 Save $374.02 Availability: In Stock
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  • SKU#: H5635260
  • Color/Finish: Black
  • Emissions: 49-state legal - no CA shipments
  • Product Fit: Direct fit
  • Quantity Sold: Kit
  • Anticipated Ship Out Time: 7-8 business days
  • Number of Cylinders: 8
see more Fits the following 1965 Pontiac GTO submodels:
  • 8 Cyl 5.3L | Base
  • 8 Cyl 6.4L | Base

49-state legal - no CA shipments Flowtech II Headers

Flowtech II Full Length Headers are made to deliver maximum and leak-free performance using precise engineering and rigorous testing methods. These full length headers are built using select cold roll flash mild steel tubing and Flowtech's own thick mandrel-formed Power Plenum collector. Furthermore, their entire ports are tight fitted with durable and leaf-proof O-ring seals.

Features:
  • Enhance engine fuel economy
  • Precision fit and leak-proof construction for optimum performance

Notes:

  • 49-state legal; Not for sale or use in California; Not legal in California and other states adopting California Emissions Standards; Not for sale or use in California and other states adopting California Emissions Standards; Cannot be shipped to California and such states
Flowtech Headers, Flowtech II, Steel, 4-1
$326.33 List Price $385.07 Save $58.74 Availability: In Stock
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  • SKU#: F3131170
  • Color/Finish: Silver ceramic coated
  • Emissions: 49-state legal - no CA shipments
  • Product Fit: Minor Modifications
  • Quantity Sold: Kit
  • Anticipated Ship Out Time: 1-2 business days
  • Collector Attachment Style: Weld-on
  • Collector Diameter: 3 in.
  • Equal Length Primary Tubes: Yes
  • Head Flange Style: Standard
  • Includes: Gasket(s)
  • Number of Cylinders: 8
  • Port Shape: Round
  • Primary Tube Diameter: 1.63 in.
  • Primary Tube Wall Thickness: 16-gauge
  • Warranty: 90-day Flowtech warranty
see more Fits the following 1965 Pontiac GTO submodels:
  • 8 Cyl 5.3L | Base
  • 8 Cyl 6.4L | Base

4-1 For off road/track use Hooker Competition OE replacement Headers

Hooker Competition Headers are designed for optimal performance and have the auto industry's best welds for unmatched durability. These are available with fittings to completely accommodate the air-injection manifold.

Product Features:

  • 4-1 design
  • Tuned-length primary tubes for maximum exhaust scavenging and velocity
  • 16-gauge mild steel mandrel-bent tubing for smooth exhaust flow
  • Long transition collector for decreased back pressure
  • Machined flanges for a perfect seal

Note:

  • For off road use - Not legal for use on public roads and highways
Hooker Headers, Hooker Competition, Steel, 4-1
$240.44 List Price $283.72 Save $43.28 Availability: In Stock
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  • SKU#: H264901
  • Color/Finish: Black
  • Emissions: For off road/track use
  • Product Fit: Direct fit
  • Quantity Sold: Kit
  • Anticipated Ship Out Time: 1-2 business days
  • Collector Attachment Style: Flange
  • Collector Diameter: 3 in.
  • Equal Length Primary Tubes: Yes
  • Head Flange Style: Standard
  • Head Flange Thickness: 0.31 in.
  • Includes: Gasket(s)
  • Number of Cylinders: 8
  • Port Shape: SAP
  • Primary Tube Diameter: 1.63 in.
  • Primary Tube Wall Thickness: 16-gauge
  • Warranty: Hooker limited warranty
see more Fits the following 1965 Pontiac GTO submodels:
  • 8 Cyl 5.3L | Base
  • 8 Cyl 6.4L | Base