Features & Benefits

Natural stainless-steel finish offers superior resistance to rust and corrosion
3/8" thick 304 stainless machine flanges to prevent warping
CNC 304 stainless mandrel bent tubes for an accurate fit and improved flow
Precision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower

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	304 Stainless Steel
Material	304 Stainless Steel
Design	Full-length
Primary Tubing Diameter	1.75 IN
Collector Port Diameter	3.0 IN
Port Shape	Round
Tube Wall Thickness	16 Gauge
Flange Thickness	0.375 IN
Collector Attachment	3-Bolt Flange
EGT Port	No
Oxygen Sensor Port	No
Gasket Or Seal Included	Yes
Mounting Hardware Included	Yes
Color	Silver
Sheen Level	Satin

Big Block Chevy (396-502) Engine Swap Headers

1964-77 GM F & A Body 396-502 Big Block Chevy 1 3/4" 304 Stainless Steel Long Tube Header with 3" Collector