Doug's Headers D322-B 2" 4-Tube Full Length Header Chevrolet Chevelle Big Block Chevrolet 64-67 Hi-Temp Black Coating
Part Number: D322-B
UPC: 694342542757
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Doug's Headers D322-B 2" 4-Tube Full Length Header Chevrolet Chevelle Big Block Chevrolet 64-67 Hi-Temp Black Coating
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Disclaimer
Federal and state "anti-tampering" laws regulate modifications that affect emissions from motor vehicles and prohibit the sale, installation, and on-highway use of any add-on or modified emissions-related part on any pollution-controlled vehicle unless the part has received an exemption from the California Air Resources Board ("CARB"), is considered an exempt or replacement part, or we as the manufacturer have reasonable basis to know that the part does not increase emissions above the applicable standard in compliance with the EPA tampering policy. If a part has a California Executive Order Exemption (EO #) or meets the requirements for an exempt part such as a Cat Back Exhaust system or is considered a replacement part, it is legal for sale or use in all 50 states. If a part is compliant with EPA’s tampering policy, it is legal for sale or use in all states except California. We are required by law to inform you about the legality of parts that we manufacture and sell and will refuse the sale of certain parts if the following requirements are not conformed with. Use of non-compliant parts for purposes other than stated can result in a citation, fines, or the inability to register the vehicle. For the product you are attempting to add to your cart, you must certify, by clicking one of these boxes that you are using the product in the manner stated and for the application as specified by the manufacturer.
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- Highlights
- Additional Information
- Download Instruction Manual
Highlights
- 3/8" Thick machined flanges... no warping
- CNC mandrel bent tubes... accurate fit & better flow
- Precision formed long transition collectors and long tube design... reduces backpressure and increases higher RPM horsepower
- Heavy 16 gauge tubing... longer life
- Tubes are pre-polished to remove scratches and the header is finished with a Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees
Chevelle - 64-77
El Camino - 64-77
Chevrolet/GMC C-10, C-20 - 67-87
- 69 - Big Block frame stands and motor mounts must be used to insure proper engine location and header fit
- 94 - Non catalytic converter equipped
- 226 - This long tube header has excellent ground clearance with collector above the bottom of the frame rails
- 247 - Will work with 4L60E and 4L80E transmissions
Chevrolet/GMC Blazer/Jimmy - 68-87
- 69 - Big Block frame stands and motor mounts must be used to insure proper engine location and header fit
- 94 - Non catalytic converter equipped
- 226 - This long tube header has excellent ground clearance with collector above the bottom of the frame rails
- 247 - Will work with 4L60E and 4L80E transmissions
Monte Carlo - 70-77
Caprice/BelAir/Impala etc Passenger car 70-74
Camaro - 70-72
Additional Information
Doug's PASSENGER CAR HEADERS Long Tube Metallic Ceramic Coated Header development and design is complex and requires a substantial amount of time and resources to do the job right! Many manufacturers are unwilling to make the commitment and instead offer compromised headers at lower prices. Doug's will not compromise performance, quality or fit to compete with inferior designs at cheap prices. Every Doug's header is tuned with the proper tube size and length to efficiently remove all the exhaust from each cylinder, reducing pumping losses resulting in a dramatic increases in horsepower and torque. Doug's headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.
Download Instruction Manual
EMISSIONS PLACARD
PerTronix Performance Ignition and Exhaust Brands use a voluntary product identification program whereby all emission sensitive products can be identified by placing numbered labels in product packaging and listing corresponding numeric codes next to each part number. The corresponding numbers and explanations are as follows:
PERTRONIX PERFORMANCE BRANDS EMISSIONS CODES
This product has been granted a California Air Resources Board (CARB) Executive Order (EO Number) Exemption. It is 50 State Legal when installed on the Specified vehicle per the Manufacturer’s Current Application Guide, the CARB EO, and Installation Instructions.
PERTRONIX PERFORMANCE BRANDS EMISSIONS CODES
This product is Legal for use on Pre-PoIIution Controlled Vehicles. It is legal for use on all
vehicles produced Before Emissions Control Regulations were imposed. These are considered
Uncontrolled Vehicles and are defined as follows;
1965 and Older US Manufactured California Certified Vehicles
1967 and Older US Manufactured Federally Certified Vehicles
1967 and Older Foreign Manufactured Vehicles
PERTRONIX PERFORMANCE BRANDS EMISSIONS CODES
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.
PERTRONIX PERFORMANCE BRANDS EMISSIONS CODES
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 Manufactured's Application Guide and lnstallation Instructions.
PERTRONIX PERFORMANCE BRANDS EMISSIONS CODES
This Product is legal for Street or Off Highway use in 49 States. This product meets the EPA Anti Tampering Policy for Reasonable Basis that allows the stated vehicle to operate within the legal emissions standards in states that do not require а California EO. This product in Not Legal for Street or Off Highway use in California.
PERTRONIX PERFORMANCE BRANDS EMISSIONS CODES
This Product is Certified by the Manufacturer as being а Non-Emissions Related part per CARB and
EPA regulations and therefore does not require emissions certification or CARB EO and is legal in
all 50 states.
