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Upright/Drag Header Install

2K views 11 replies 5 participants last post by  newageroman 
#1 ·
I'm wanting to get rid of the existing headers on my '78 with a 400 and replace with upright/drag headers through the hood. I'm wondering before I order the parts, is it a straight swap or will I run into issues with the new headers hitting other components? The ones I'm looking at have a forward offset which I hope will get away from my steering box. There is a non-offset option from DEC also. Any advice on this would be greatly appreciated.
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#3 ·
Thanks man! The inside looks like the outside-muddy. haha. She Isn’t pretty but she goes like a bastard.
that’s the exhaust hanging down there, it fell off during the last mudbog.
I think I’ll just order the headers and jam them in, if I have to modify anything I’ll burn that bridge later.
although if anyone has any ideas I’m still open to them.
 
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#4 ·
The forward offset ones likely be best. The booster and master are right near there on these trucks. Mine has a 460 in it and I think this would get closer then the steering shaft, not sure as have not done a set of these myself.
From what I have seen you do want collector style ones, not just 4 tubes per side, the dragster sytle ones seem like they loose too much torque in the mud on all but the more radical stuff.
 
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#5 · (Edited)
These are the ones from DEC that I’m looking at. I finally got her into the shop last night so I can start figuring things out for the spring!! She had a bit of a fire under the hood last year
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#6 ·
The pic uploaded twice for some reason....I’m not good at the internets
 
#9 ·
I like your Bronco. I hope you did not get hurt buy the fire. Mine did to in October and got both hands burnt. Still recuperating,but I saved my 78 and myself luckily. If you have a Motorcraft 2 barrel. Check where the carb form was modeled at.Where the gas line screws into the carb,RIGHT ABOVE IT. Sometimes it will leak and some times it will not. I,m going to a Holley. They don,t have the form and is made of some different kind of metal and its about twice the weight of a Motorcraft. .GOOD LUCK AND GET YOU A BIG FIREXTINGUISHER HANDY. The gas will build up on the intake and can cause a fire as you travel down the road. I was getting ready to take mine for a test drive and it backed fired once. I did have a breather on it to. Also the BIG AIR BREATHER --STOPPED ME FROM GETTING UNDER THE CARB TO FIGHT THE FIRE. nOW HEARS YOU CAN LAUGH. I was taking off cloth to smother the fire and finally when I got done. All I had on was one sock and my under shorts. hahahhahahahahahaha Good luck and be careful
 
#8 ·
I haven’t heard of any. I’ll look into it but I imagine that I’ll end up just ordering the ones from the above post.
move been looking at it and I think I may have to move the washer fluid tank but that’s it. Which isn't the end of the world because I’m going to install a deluge pipe over the windshield anyway
 
#10 ·
Jesus, that’s sounds crappy. Sorry you got burned. Mine wasn’t near that bad. I have a Edelbrock 1826, the supply hose sprung a leak and did the same thing in a way. Luckily it was just idling and I was close to my boat that had an extinguisher in it. A bit of melted wiring and some carb damage. Cleaned it up and seems ok now. Going to a holley also, my mechanic friend says they are much better but I guess we’ll see
 
#11 ·
Said F#$k it and bought the ones from the USA. Turns out that there was $0 duty so the whole shittery cost just over $500CAD shipped. Fairly reasonably priced if you ask me. I haven‘t received them yet but I only ordered them last week so I can’t attest to the quality yet but let me tell you DEC is great to deal with. It’s a 2 man operation in Ohio, when I called them up the old boy answered and was wicked helpful. He asked questions that hadn’t crossed my mind to ensure I got what I’m ultimately after. I’ll post again when i get them. Also I just snorkelled the air intake into the cab of the truck so she will swim now.
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