The Story
Highlights
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.
Many direct fitments with Chevy Big Blocks (396-502) are available. Please refer to the product page for applications. This product can also be used in Chevy Big Block (396-502) engine swaps.
- 3/8” thick machined flanges to prevent warping
- CNC mandrel bent tubes for an accurate fit and improved flow
- Durable 16 gauge tubing
- 2 1/8" Primary Tubing Diameter
- 3 1/2" Collector Port Diameter
- Round Port Shape
- Metallic Ceramic Coating
Our Metallic Ceramic Coating protects and extends the life of headers by creating a thermal barrier which significantly lowers under hood temperatures and protects the substrate metal from thermal fatigue. After the Metallic Ceramic Coating is applied, it is polished with a vibratory finishing process that produces a high luster aluminum appearance. The polishing process compresses and activates the coating, creating a surface which is harder and 60% more corrosion resistant than an unpolished surface.
Description
Highlights
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.
Many direct fitments with Chevy Big Blocks (396-502) are available. Please refer to the product page for applications. This product can also be used in Chevy Big Block (396-502) engine swaps.
- 3/8” thick machined flanges to prevent warping
- CNC mandrel bent tubes for an accurate fit and improved flow
- Durable 16 gauge tubing
- 2 1/8" Primary Tubing Diameter
- 3 1/2" Collector Port Diameter
- Round Port Shape
- Metallic Ceramic Coating
Our Metallic Ceramic Coating protects and extends the life of headers by creating a thermal barrier which significantly lowers under hood temperatures and protects the substrate metal from thermal fatigue. After the Metallic Ceramic Coating is applied, it is polished with a vibratory finishing process that produces a high luster aluminum appearance. The polishing process compresses and activates the coating, creating a surface which is harder and 60% more corrosion resistant than an unpolished surface.
