440 motor in 68 Barracuda

My '67 is a factory 383 formula S and when I got it it had a 440 in it with fender well headers. So my K member (big block) worked fine, but I hated those headers. Take your manifolds with you when you go to look at the 440, see if they line/bolt up and take a tape measure. you may have to get different motor mounts too for the K member if it's not a big block one. Good luck!