Ls header flange is 3/8 thick, has 1 3/4" port hole, and is mild steel.
Ls Header Flange 1 3/4" Port Stainless
Extreme Exhaust Gaskets, 1-5/8 Inch Header Flange, Fits Ford Flathead
Stainless Header Flange For Ford 2.0L Zetec Engine- 3/8" Thick- 1 5/8" Port
Stainless Header Flange For Ford 2.3L Pinto Engine- 3/8" Thick- 1 3/4" Port
3/8" Thick 304 Stainless Steel Header Flange For Ford/Barra 4L I-6: 1 3/4" Port
ARP 134-1102 Header Bolts 1.181 in UHL 8mmx1.25 in Thread SBC LS Engine Hex
