With warp-free, 3/8”-thick machined flanges and CNC mandrel-bent tubes, the raw-steel 1¾” four-tube full-length header set (D451-R) from Doug’s Headers offers an accurate fit and better flow for your Mopar B-body big block application. Its precision-formed, long-transition collectors and long tubes both reduce backpressure and increase higher-RPM horsepower, while the 16-gauge heavy tubing extends performance life. Finally, Doug’s Headers has pre-polished the tubes to remove scratches and left the header unfinished for your customization.
Features
- For Mopar B-body big block.
- 3/8”-thick machined flanges for no warping.
- CNC mandrel-bent tubes for an accurate fit and better flow.
- Precision-formed long-transition collectors and long tubes reduce backpressure and increase higher-RPM horsepower.
- Heavy 16-gauge tubing for longer life.
- Tubes are pre-polished to remove scratches.
- Header is unfinished (raw steel) for individual customizing.
