1966 F-250 Header install question
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4wd Low
Joined: Dec 2022
Posts: 10
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1966 F-250 Header install question
Greetings,
1966 F-250 Camper Special, 352fe, 2wd, New Process 435 manual trans on the floor, OEM manual steering box, OEM starter motor. All original where it counts. Who out there makes mid length or shorty headers that are a direct fit that don't require notching the frame rails? I'm willing to get a smaller starter if i need to. My original cast iron units are cracked in several places. I know I'll have to bend now pipe for the exhaust. Thanks for you help gang!
Fred
Ashland, Oregon
1966 F-250 Camper Special, 352fe, 2wd, New Process 435 manual trans on the floor, OEM manual steering box, OEM starter motor. All original where it counts. Who out there makes mid length or shorty headers that are a direct fit that don't require notching the frame rails? I'm willing to get a smaller starter if i need to. My original cast iron units are cracked in several places. I know I'll have to bend now pipe for the exhaust. Thanks for you help gang!
Fred
Ashland, Oregon
Logistics Pro
Joined: Jun 2018
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These should do the trick. Avoid the ones with the ones with the passenger side that point to the rear it will run into the firewall. Long tube headers have a problem with the Z-bar.
Sanderson Headers FF391-P Sanderson Headers Blockhugger Headers | Summit Racing
Sanderson Headers FF391-P Sanderson Headers Blockhugger Headers | Summit Racing
Thread Starter
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4wd Low
Joined: Dec 2022
Posts: 10
Likes: 1
I’ve looked into them and have heard from others Sanderson’s are the way to go. So thank you.
Would you happen to know if the cast iron exhaust manifolds are bolted to the head or do they use a stud and nut ?
Would you happen to know if the cast iron exhaust manifolds are bolted to the head or do they use a stud and nut ?
Cargo Master
Joined: Jan 2016
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I had hedman long tubes (Part #89810) on my '65 with 352 and NP435. They fit without notching the frame but you have to raise the engine to get them in and remove the starter. If you have to change the starter down the road, you have to unbolt the header from the head. So I'd try the sanderson shorties that were mentioned if I had it to do over.
If you're handy with a welder, it's a nice time to to insert an oxygen sensor bung. Only need one to monitor your air:fuel incase you want to tinker with carb settings to optimize steady cruise, heavy throttle, etc.
If you're handy with a welder, it's a nice time to to insert an oxygen sensor bung. Only need one to monitor your air:fuel incase you want to tinker with carb settings to optimize steady cruise, heavy throttle, etc.
More Turbo
Joined: Jan 2023
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From: South of Orlando
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Lead Gopher
Joined: Aug 2012
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From: Seattle
Mummert's Ramhorns are for 292/312 type Y-blocks. The 1965-1966 V8 was the 352 FE so they won't bolt up to that engine. Kugel makes these which I think may clear the frame since his casting removed the bulges on the outer downward leg of each.
FE Manifolds – Kugel Komponents
FE Manifolds – Kugel Komponents
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Cargo Master
Joined: Oct 2005
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From: Stanton, Michigan, USA
These should do the trick. Avoid the ones with the ones with the passenger side that point to the rear it will run into the firewall. Long tube headers have a problem with the Z-bar.
Sanderson Headers FF391-P Sanderson Headers Blockhugger Headers | Summit Racing
Sanderson Headers FF391-P Sanderson Headers Blockhugger Headers | Summit Racing
It lists a bunch of '60/'70s cars, but I didn't see where it listed any '66 F250....??
BarnieTrk
Cross-Country
Joined: Jul 2019
Posts: 65
Likes: 6
I installed Sanderson shorty headers on my 390 (actually 405) in my 1966 F100 when I had it installed. It fit without needing to notch the frame. It did require a smaller starter though. I purchased a heat blanket to put around it to protect it from the heat of the header. Not sure if 100% necessary, but it wasn't that much. You lose some HP with the shorter headers compared to the long tube headers, but I didn't build a race truck, so didn't matter.
Rick
Rick
Mountain Pass
Joined: Mar 2022
Posts: 204
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I had hedman long tubes (Part #89810) on my '65 with 352 and NP435. They fit without notching the frame but you have to raise the engine to get them in and remove the starter. If you have to change the starter down the road, you have to unbolt the header from the head. So I'd try the sanderson shorties that were mentioned if I had it to do over.
And yes, weld in an O2 bunge. If you don't need it know, plug it.
Thread Starter
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4wd Low
Joined: Dec 2022
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Sanderson confirmed FF 391 P is the header to get. Keep in mind they are steel and not stainless so powder coating is a must. They sell them in silver and black powder coating and swear by their quality of coating. So talk to Sanderson and then order from Summit. I’m not building a race truck either I just need to replace the cracked original cast iron units.
Laughing Gas
Joined: Sep 2018
Posts: 760
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From: Mid-South Missouri
OP, if you haven't ever removed those type of manifolds, the upper bolt ends (8) are exposed to the elements going through the head castings.
If they haven't been out for numerous years, they rust and corrode badly. Removing can twist the bolt off in the head, or.........break the casting ear off of the head. Either will require removing the head for the easier fix. Fixing under the hood may/may not be doable.
So, I suggest numerous doses of penetrating oil numerous times and wire brush and let them soak.
And, if they still feel like they may twist off, I've added heat (hot wrench) to the head casting. Warm red hot then let cool. Soak and try to remove again.
If they haven't been out for numerous years, they rust and corrode badly. Removing can twist the bolt off in the head, or.........break the casting ear off of the head. Either will require removing the head for the easier fix. Fixing under the hood may/may not be doable.
So, I suggest numerous doses of penetrating oil numerous times and wire brush and let them soak.
And, if they still feel like they may twist off, I've added heat (hot wrench) to the head casting. Warm red hot then let cool. Soak and try to remove again.
Logistics Pro
Joined: Jun 2018
Posts: 3,554
Likes: 442
Sanderson confirmed FF 391 P is the header to get. Keep in mind they are steel and not stainless so powder coating is a must. They sell them in silver and black powder coating and swear by their quality of coating. So talk to Sanderson and then order from Summit. I’m not building a race truck either I just need to replace the cracked original cast iron units.
