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Founder, 1929-2014
Speedy Bill
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Big Block Chevy Dragster Header Collectors - Merge

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Big Block Chevy Dragster Header Collectors - Merge

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Please NOTE the following about this product:

  • This product is discontinued.



Q & A

What's in the Box

Ceramic coated header collectors for big block Chevy dragster headers.

Item Details

Slip Over: 2-1/4", Outlet Size: 4"

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Dynatech® 780-12518 Ceramic Coated Merge Collector, 2-1/4 x 4 Inch
(Part #31178012518)

Dynatech® Ceramic Coated Merge Collectors are a popular option when your racing application requires maximum horsepower. Merge collectors are not usually a "bolt it on and go" part. In order to realize the full potential of this collector design, dyno testing is recommended.

  • 100% TIG-welded
  • Optimum reduction angle
  • Increases torque and horsepower
  • Sold individually
  • Listed as Primary I.D. x Collector O.D.

Note: Does not include O2 bungs. To purchase separately, order part 311-78510097.

How It Works (PDF)