Long Tube Headers for 70-81 Firebird 455 W/HO/SD/Ram Air Heads only D581-B
Long Tube Headers for 70-81 Firebird 455 W/HO/SD/Ram Air Heads only D581-B 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:
70-81 Firebird 455 HO Long Tube Blck 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: 3.5 IN
- Collector Port Diameter: 3.5 IN
- Color: Black
- Cylinder Head Port Shape: Round
- Design: Full-length
- EGT Port: No
- Finish: Hi-Temp Black Coating
- 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: Round
- Primary Tube Outside Diameter: 1.875 IN
- Primary Tubing Diameter: 1.875 IN
- Prop 65 (C, R or CR): CR
- Prop 65 Yes/No: Yes
- Sheen Level: Matte
- Title: Doug's Long Tube Header 70-81 Firebird 455 W/HO/SD/Ram Air Heads only 1 7/8" Primary 3 1/2" Collector Black Hi Temp Coated D581-B
- Tube Wall Thickness: 16 GU
- Part Number: D581-B
Applications:
- 1970-1979 Pontiac Firebird 350 CID
- 1970-1979 Pontiac Firebird 400 CID
- 1971-1976 Pontiac Firebird 455 CID
- 1977-1979 Pontiac Firebird 403 CID
Emissions:
- This Product is LEGAL for Closed Course Competition use or Pre-Emissions Controlled Vehicles ONLY. It is Not Legal for use on any Emissions Controlled Vehicle for Street or Off Highway use.
Instructions:
Fitment Notes:
- Requires removal or modification of locking steering columns if equipped.
- Fits Edelbrock Performer RPM, RAM-Air, Super Duty and H.O. Round Port Heads only
- Header will fit with Milodon oil pans 30355, 31660 and 31665
- with Floor Shifter
Payment & Security
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