Curious what's out there for a header for my 440 dart sport

I see no way those will work in an A body. I hope I am wrong.

I am right. Those are only for the B and E body. They will not fit your Dart.

Here is the detail page from Hedman. Scroll to the bottom where it says "VEHICLE APPLICATIONS" and you will see all they fit are B and E bodies. They are not an A body header.

Engine Performance & Vehicle Customizing Products From Hedman | Hedman Performance Group
Yes your wrong and yes it was and is a *****. They're installed but with everything on this Dart RB nothing is easy. Im using a soft faced mallet and using a sharpie have shaped the tubes on drivers side to give a RCH on my manual steering gear and torsion bar also the inside for tail end of starter housing. My passenger side is hitting 2 runners on torsion bar but it sits in there but tighter than I thought. There was no returning as you gotta start somewhere. My issue at this point is pass side tubes not allowing engine to sit up off fender well. To get these in I removed string column and moved manual master cylinder off to the side. Also had a not so good pick using engine hoist and tilting engine. Northern California is smoking hot now so swimming more wrenching less. Heres some pics so it's real if it's in pics right haha.

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