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SBC 18 Degree Header Flange

Chevy 18 Degree Small Block Header Flange

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Product Code: RM2518HF
Choose your options:
Preformed Flange Stubs:
Preformed Stub Size:
Precision laser cut from 3/8" thick 304 stainless, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the small block Chevy 18 degree head.
Port Size: 1.858"
Preformed flange stubs are 2"-3" long, and have one end perfectly formed to the port shape of the flange using the appropriate tubing size for that port. This can drastically decrease overall build time. If you have questions on sizing or other options, talk with one of our techs for more information.

They fit the following head models:
Dart 18 degree 14100000,14172010,14172020,14172030,14172040
Trick Flo TFS-3181T001-c01
Brodix 18X Series

We carry over 250 different header flange designs, so if you don't see the flange your looking for, talk with one of our tech reps about custom header flange cutting.

Flanges Sold Separately.

If you would rather purchase a pair of flanges with stubs already formed and welded in for you, try checking out out flange kits by clicking on the link below. More kits are being added all the time, so keep an eye out or call and ask one of our specialists for information on a flange kit that may not yet be on the site.Chevy 18 Degree Flange Kit


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