Doug's Headers D331 - 2 1/8" 4-Tube Full Length Header Chevelle Big Block Chevrolet 68-72 Metallic Ceramic Coating

Doug's Headers D331 - 2 1/8" 4-Tube Full Length Header Chevelle Big Block Chevrolet 68-72 Metallic Ceramic Coating

Headers - Full - 2.125 in Primary - 3.5 in Collector - Gaskets / Hardware / Reducers Included - Steel - Silver Ceramic - Big Block Chevy - GM A-Body 1968-72 - Kit

Doug's Long Tube Header 68-77 GM A Body 396-502 BBC Non Cat, no EGR or A.I.R. 2 1/8" Primary 3 1/2" Collector Silver Ceramic Coated D331

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.

• 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