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Headers for 1965 Pontiac GTO

We have 3 Items In-stock. Select your vehicle's Submodel to continue.

Hedman Headers

Hedman Headers, Hedman HTC Hedders, Steel, 3-1
$537.25 List Price $1,227.14 Save $689.89 Availability: In Stock
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  • SKU#: H5628146
  • Color/Finish: Metallic ceramic coated
  • Emissions: 49-state legal - no CA shipments
  • Product Fit: Direct Fit
  • Quantity Sold: Kit
  • Anticipated Ship Out Time: 2-3 business days
  • Bolts/ Studs Included: Yes
  • Collector Attachment Style: Flange
  • Collector Diameter: 3 in.
  • Emissions Legality: 49-state legal - no CA shipments
  • Gaskets Included: Yes
  • Head Flange Style: Standard
  • Head Flange Thickness: 1/4 in.
  • Header Style: Long tube
  • Includes: Premium gasket, installation hardware
  • Notes: With out Smog Injection Or Injection Heads
  • Number of Cylinders: 8
  • Port Shape: Round
  • Primary Tube Diameter: 1.63 - 2 in.
  • Primary Tube Thickness: 18 Gauge
  • 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

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: Same day - 1 business day
  • 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