Long Tube Headers for 68-72 GTO 326-455 W/O EGR/A.I.R. 1-3/4in Primary D590
Long Tube Headers for 68-72 GTO 326-455 W/O EGR/A.I.R. 1-3/4in Primary D590 is backordered and will ship as soon as it is back in stock.
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Fitment
Fitment
Warranty Information
Warranty Information
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Description
Description
Overview:
68-72 GTO 326-455 Long Tube Silver Ctd
Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market.
Features:
- 3/8" Thick machined flanges to prevent warping
- Precision formed long transition collectors and long tube design reduces backpressure and increases higher RPM horsepower
- Heavy duty 16-gauge tubing for long life
- Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating
Specs:
- Brand: Doug's Headers
- Collector Attachment: 3-Bolt Flange
- Collector Diameter: 3.0 IN
- Collector Port Diameter: 3.0 IN
- Color: Silver
- Cylinder Head Port Shape: D-port
- Design: Full-length
- EGT Port: No
- Finish: Metallic Ceramic Coated
- Flange Thickness: 0.375 IN
- Gasket Or Seal Included: Yes
- Gaskets Included: Yes
- Grade Type: Performance
- Header Material: Steel
- Header Style: Full-length
- Material: Steel
- Mounting Hardware Included: Yes
- Oxygen Sensor Port: No
- Port Shape: D-port
- Primary Tube Outside Diameter: 1.75 IN
- Primary Tubing Diameter: 1.75 IN
- Prop 65 (C, R or CR): CR
- Prop 65 Yes/No: Yes
- Sheen Level: Semi-Gloss
- Title: Doug's Long Tube Header 68-72 GTO 326-455 W/O EGR/A.I.R. 1 3/4" Primary 3" Collector Silver Ceramic Coated D590
- Tube Wall Thickness: 16 GU
- Part Number: D590
Applications:
- 1968-1972 Pontiac GTO 400 CID
- 1970-1972 Pontiac GTO 455 CID
- 1968-1972 Pontiac LeMans 350 CID
- 1968-1972 Pontiac LeMans 400 CID
- 1970-1972 Pontiac LeMans 455 CID
- 1968-1970 Pontiac Tempest 350 CID
- 1968-1970 Pontiac Tempest 400 CID
Emissions:
- This Product is considered а Replacement Part per CARB and EPA regulations for emissions compliance and is legal for sale and use on specified vehicles in all 50 states as stated in Manufacturer's Application Guide and lnstallation Instructions.
Instructions:
Fitment Notes:
- Requires removal or modification of locking steering columns if equipped.
- Some factory heads do not have end bolt holes and should be drilled and tapped to assure proper sealing.
- Fits D-Port heads Only.
- with Floor Shifter
Payment & Security
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