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	1.625 IN
Collector Port Diameter	3.0 IN
Port Shape	SAP
Tube Wall Thickness	16 Gauge
Flange Thickness	0.375 IN
Collector Attachment	3-Bolt Flange
EGT Port	No
Oxygen Sensor Port	Yes
Gasket Or Seal Included	Yes
Mounting Hardware Included	Yes
Color	Silver
Sheen Level	Semi-Gloss

5.7-6.4L Gen III Hemi Engine Swap Headers

1968-74 Mopar R/T 5.7 Hemi 1 5/8" 4-Tube Full Length Header with Metallic Ceramic Coating