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 5.4L 4-valve Cobra Jet Modular motor found in the high performance Mustang SVT Cobra R, Shelby GT 500, and Mustang GT, each in various years from 2000-2012.
Port Size: 1.868"
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.
We carry over 250 different header flange designs, so if you don't see the flange you're looking for, talk with one of our tech reps about custom header flange cutting.
Flanges Sold Separately
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