Doug's Headers D451 Full Length Header, 1-3/4 In, 62-72 Mopar, CC

Coated Dodge Challenger (70-74) 383, 400 Engine, Charger, R/T (66-72) 383, 400 Engine, Coronet, Coronet Wagons (62-72) 383, 400 Engine, Super Bee (68-72) 383, 400 Engine, Plymouth Barracuda (70-74) 383, 400 Engine, Belvedere (62-72) 383, 400 Engine, Fury (No C Bodies) (62-72) 383, 400 Engine, GTX (66-72) 383, 400 Engine, Roadrunner (68-72) 383, 400 Engine. This part comes standard with Metallic Ceramic Thermal Barrier Coating (MCTBC). MCTBC protects and extends the life of headers by creating a thermal barrier that significantly lowers underhood temperatures and protects the substrate metal from thermal fatigue. It also provide corrosion resistance to protect it for years to come.

Please see our online catalog for specific application information.

Every Dougs 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. Dougs headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.Every Dougs 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. Dougs headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.

• 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 isfinished with a Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees

• Doug's Headers D451 1 3/4" 4-Tube Full Length Header Mopar B Body Big Block Mopar 62-72 Metallic Ceramic Coating
• Ceramic Coated
• Collector: 3
• Port Shape: SAP
• Primary Tube: 1 3/4
• Designed for orig. heads (906 or 915 castings) legal for off-highway use (exc. in Calif. or states using Calif. emission standards)
• Fits with Mopar mini-starter PN P5249644AB
• Primary: 1 3/4
• (no c bodies)
• Designed for orig. heads (906 or 915 castings) legal for off-highway use (exc. in Calif. or states using Calif. emission stds.)
• with A/C
• with Floor Shifter

• Doug's Headers D451 1 3/4" 4-Tube Full Length Header Mopar B Body Big Block Mopar 62-72 Metallic Ceramic Coating
• Ceramic Coated
• Collector: 3
• Port Shape: SAP
• Primary Tube: 1 3/4
• Designed for orig. heads (906 or 915 castings) legal for off-highway use (exc. in Calif. or states using Calif. emission standards)
• Fits with Mopar mini-starter PN P5249644AB
• Primary: 1 3/4
• (no c bodies)
• Designed for orig. heads (906 or 915 castings) legal for off-highway use (exc. in Calif. or states using Calif. emission stds.)
• with A/C
• with Floor Shifter

Installation Instructions (PDF)