Headers for 460 Auto 4x4
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Senior User
Joined: May 2014
Posts: 463
Likes: 2
From: Ashton, MD.
Headers for 460 Auto 4x4
I have an 84 F350 Automatic 4x4 with the 460. I think my factory manifolds are pretty rusted out and leaking exhaust. I'm not very handy myself and I don't want to pay an arm and a leg to replace them. I know there are a lot of options out there but what would get the job done in my case for minimal cost/labor? If headers are to intrusive is swapping out the manifolds for new ones pretty straight forward?
If it matters I do plan on doing a full dual exhaust as well.
If it matters I do plan on doing a full dual exhaust as well.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
Rounded off bolts are likely going to be a problem.
Having a welder to weld nuts onto those bolts that break is a lot easier than trying to use an easy-out or other method on the broken ones.
Cast replacement manifolds are under $100 delivered on Ebay.
Best access is through the wheel well if you jack the front and take the wheels off.
I put 1 3/4" 3/8-16 stainless bolts when I changed my engine.
They will not round off or flake apart.
Dorman makes brass nuts for the headpipe flange studs.
If you are swapping manifolds and don't need to save the studs, an impact gun and long extension is easiest on that end.
Having a welder to weld nuts onto those bolts that break is a lot easier than trying to use an easy-out or other method on the broken ones.
Cast replacement manifolds are under $100 delivered on Ebay.
Best access is through the wheel well if you jack the front and take the wheels off.
I put 1 3/4" 3/8-16 stainless bolts when I changed my engine.
They will not round off or flake apart.
Dorman makes brass nuts for the headpipe flange studs.
If you are swapping manifolds and don't need to save the studs, an impact gun and long extension is easiest on that end.
Fleet Owner
Joined: May 2009
Posts: 21,437
Likes: 76
From: Gilbert, PA
No, No you don't. All the headers available for your truck are JUNK. Your manifolds are 30 years old. You would be hard pressed to get 5 years from the headers available
Moderator
Joined: Jan 2001
Posts: 57,012
Likes: 2,750
From: Virginia
Autozone has the driver's side for $219 and the pass side for $189. You can probably find them cheaper on RockAuto Parts Catalog or ebay. Try Amazon too.
When you go to rockauto write the part numbers down. They are good to use when searching on the other sites and on the web.
When you go to rockauto write the part numbers down. They are good to use when searching on the other sites and on the web.
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pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
Wow!
They are under $80 a side delivered from Ebay.
http://www.ebay.com/itm/460-7-5-Ford-F250-75-76-77-78-79-80-81-82-83-84-85-86-87-Exhaust-Manifold-RH-/371191213558?pt=Motors_Car_Truck_Parts_Accessories&hash=item566cb86df6&vxp=mtr
http://www.ebay.com/itm/460-7-5-Ford-F250-Truck-1975-1987-New-Exhaust-Manifold-Left-/271672117931?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f40eb8aab&vxp=mtr
Or buy the pair...
http://www.ebay.com/itm/460-7-5-Ford-Truck-75-76-77-78-79-80-81-82-83-84-85-86-87-Exhaust-Manifold-Set-/271691694913?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f42164341&vxp=mtr
They are under $80 a side delivered from Ebay.
http://www.ebay.com/itm/460-7-5-Ford-F250-75-76-77-78-79-80-81-82-83-84-85-86-87-Exhaust-Manifold-RH-/371191213558?pt=Motors_Car_Truck_Parts_Accessories&hash=item566cb86df6&vxp=mtr
http://www.ebay.com/itm/460-7-5-Ford-F250-Truck-1975-1987-New-Exhaust-Manifold-Left-/271672117931?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f40eb8aab&vxp=mtr
Or buy the pair...
http://www.ebay.com/itm/460-7-5-Ford-Truck-75-76-77-78-79-80-81-82-83-84-85-86-87-Exhaust-Manifold-Set-/271691694913?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f42164341&vxp=mtr
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Laughing Gas
Joined: Nov 2013
Posts: 1,210
Likes: 7
From: Minnesota
They make adapters to use 454 chevy headers. 454s were put in a lot of trucks, and I'm sure you could find a set that would fit. Hot Rod magazine mentioned them in this months issue. I have L&L headers, and have never had a problem with them, but they don't make them for these trucks, and my truck was modified to make them fit.
Moderator
Joined: Jan 2001
Posts: 57,012
Likes: 2,750
From: Virginia
They make adapters to use 454 chevy headers. 454s were put in a lot of trucks, and I'm sure you could find a set that would fit. Hot Rod magazine mentioned them in this months issue. I have L&L headers, and have never had a problem with them, but they don't make them for these trucks, and my truck was modified to make them fit.
Hedman 89348, Hedman Hedders Elite Ultra-Duty Headers | Hedman
Moderator
Joined: Jan 2001
Posts: 57,012
Likes: 2,750
From: Virginia
When I ran headers on one of these trucks, I found the header outlet hung way down below the tranny pan. I would either have to go across to the pass side UNDER the frame and meet up with the other pipe, or go UNDER the frame to the driver's side and run the pipe outside the frame to miss the gas tank.
I contemplated running the exhaust low the whole way back but caught myself, I have done that before and it looks terrible from the side of the vehicle with all that pipe hanging down where you can see it. Plus it will get caught up on everything.
I decided to put a 90 on each header outlet and run each side under the frame till I got outside the frame, where I could 90 to the rear and point it up toward the body at the same time. This minimized the amount of pipe hanging down.
But guess what? I am out in the woods getting firewood, and run over a stump in the ground. It gets hung on the header hanging down and it starts leaking. Did I say before I do not like headers on these trucks?
If you are building a street machine/play toy, it probably will be ok except tranny pan access.
Fleet Owner
Joined: May 2009
Posts: 21,437
Likes: 76
From: Gilbert, PA
Mine are long tubes and I made the exhaust on the truck myself
Took a couple of hours but it is high and tight(would of been nicer if I had a tubing bender) and have never had it get hung up on anything and I used to go 4 wheeling with it all the time
Took a couple of hours but it is high and tight(would of been nicer if I had a tubing bender) and have never had it get hung up on anything and I used to go 4 wheeling with it all the time