Doug’s Headers (D451-R): 1¾” Four-Tube Full-Length Header Set for Mopar B-Body Big Block

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.
Dougs Headers D451-R Headers for Mopar B-Body Big Block

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Though this is not a paid review, this content has been produced by The AAM Group in support of manufacturers with whom it has a business relationship.