Doug's Headers D3349 Long Tube Header 64-67 Chevy Chevelle LS Engine Swap Silver Ceramic Coated

Features & Benefits 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 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. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.For the enthusiast who demands the best, Doug's Headers are not just components; they're a statement of excellence, a commitment to leading-edge performance, and a nod to the glory days of muscle cars and drag racing. Join the ranks of champions. Experience the unmatched quality and performance of Doug's Headers today.Specifications Finish Metallic Ceramic Coated Material Steel Design Full-length Primary Tubing Diameter 1.875 IN Collector Port Diameter 3.0 IN Port Shape Round Tube Wall Thickness 16 Gauge Flange Thickness 0.375 IN Collector Attachment V-Band EGT Port No Oxygen Sensor Port Yes Gasket Or Seal Included Yes Mounting Hardware Included Yes Color Silver Sheen Level Semi-Gloss