Doug's Headers D313 Full Length Header, 1-3/4 In, 67-74 Camaro, CC

Coated Header for Chevy

• Camaro (67-74) 396-502
• Chevelle (65-72) 396-502
• Chevy II, Nova (68-74) 396-502
• El Camino (65-72) 396-502
• Monte Carlo (70-74) 396-502
• Passenger Car, Wagon (68-74) 396-502

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 D313 1 3/4" 4-Tube Full Length Header Chevrolet Camaro Big Block Chevrolet 67-74 Metallic Ceramic Coating
• Ceramic Coated
• Collector: 3
• Port: SAP
• Primary: 1 3/4
• Requires Big block frame stands and mounts
• Does not fit w/ power glide trans
• exc. states w/Calif. emission stds
• Will not fit with Saginaw 825 Steering Box
• with A/C
• For Off-Road Use Only
• with Column Shift
• with floor shifter

• Doug's Headers D313 1 3/4" 4-Tube Full Length Header Chevrolet Camaro Big Block Chevrolet 67-74 Metallic Ceramic Coating
• Ceramic Coated
• Collector: 3
• Port: SAP
• Primary: 1 3/4
• Requires Big block frame stands and mounts
• Does not fit w/ power glide trans
• exc. states w/Calif. emission stds
• Will not fit with Saginaw 825 Steering Box
• with A/C
• For Off-Road Use Only
• with Column Shift
• with floor shifter

Installation Instructions (PDF)