Noonan 4.9" Hemi Stainless Header Flange

Precision laser cut from 3/8" thick 304 Stainless Steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the Noonan 4.9" bore space Hemi cylinder heads. These have a unique bolt pattern that does NOT fit other Noonan or other manufacturer's cylinder heads

We have these available in 2 3/8" and 2 1/2" port sizes.

We carry over 450 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.