AC PERFORMANCE Aluminum -6 AN Male Flare to 5/8 x 18 Male Thread Inverted Seat Adaptor Fittings Male Inv Flare Connector, Black Pack of 2

Arrive on time and was just what I needed.

Fit perfect in my 1979 SBC 350 mechanical fuel pump outlet

These were the right thread for my stock gm raidator. Radiator is out of a 91 suburban going into a 85 c10 running a 4l80e transmission with a 5.3ls using aftermarket lines

Shipped fast, item as described

Well made. No burrs, clean finish, correct sizing, looks great

This worked perfectly for my pre-1996 4L80E