Ford Boss 429 "Boss 9" Kaase Mild Steel Header Flange
Ford Boss 429 "Boss 9" Mild Steel Header Flange
Precision laser cut form 3/8" thick mild steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are made for the aftermarket Ford Boss 429 heads by Jon Kaase Racing "Boss 9" heads.
Port Size: 2.147"
Preformed Flange Stubs are 2"-3" in length, and are formed to perfectly fit the non-round port in the flange. Stubs drastically reduce overall build time and increase builder's efficiency.
We carry over 250 different header flange designs, so if you don't see the flange you're looking for, talk with one our tech reps about custom header flange cutting.
Flanges sold separately.
- Item Requires Shipping
- 3.0 lbs.
- W5.0000” x H5.0000” x L21.0000”
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