Header Extractor Gasket, For Holden V8 EFI 308, Stainless with Graphite Overlay, Hose and Tubing They have a male NPT

They have a male NPT fitting on one end and a barbed fitting on the other end and they're available in different sizes to fit your needs

Male to -6AN Suit VE & VF Commodore

Ford Cleveland Welsh Plug Kit

Powerglide

You can be sure they fit just the same as your original

Header Extractor Gasket, For Holden V8 EFI 308, Stainless with Graphite Overlay, Hose and Tubing They have a male NPTPart Number : PFEEHPGM5 G Proflow Header Extractor Gasket, For Holden V8 EFI 308, Stainless with Graphite Overlay, 1. 653" X 1. 476" Port, Pair Proflow offers a variety of header flange sizes and shapes to mate your heads and headers. These 3 8 thick flanges are precision cut to meet your ports, reduce warping, and prevent leaks. Proflow header flanges keep your tubes in place without the big price tag. Proflow graphite laminated stainless steel