Since 1952
America's Oldest Speed Shop ®
Speedway Motors Bill Smith

Big Block Chevy Dragster Header Collectors - Merge

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Please NOTE the following about this product:

  • This product is discontinued.

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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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All Dynatech® headers are built with CNC laser-machined flanges. With port holes accurate to .003" and total warp less than .025", you can be assured that you will get all the performance and quality possible from your headers. 

For engines in the stock location or some setback. Clears mid engine mounts and stock clutch linkage. For straight or angle plug heads.

  • CNC laser-cut flanges
  • Constructed to fit with proper clearance
  • Optimized tube length for power

 

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Dynatech® Ceramic Coated Merge Collector
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Dynatech 780-12518 Ceramic Coated Merge Collector, 2-1/4 x 4 Inch
                        

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)