Author Topic: Header choices for '70 F-350?...  (Read 6253 times)

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cjshaker

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Header choices for '70 F-350?...
« on: April 13, 2015, 01:07:09 PM »
I'm taking the 390 out of my '68 to replace the 360 in my '70 dump truck, hopefully to make the haul to Beaver Springs this year. Yeah, I'm kinda pushing it but I don't have enough confidence in the original engine to push it that far. I'm wondering if any of you guys have put headers on an F-350, and if so what experience did you have and what kind were they? I haven't looked at header availability yet, but I'm guessing it's limited.
Doug Smith


'69 R-code Mach 1, 427 MR, 2x4, Jerico, 4.30 Locker
'70 F-350 390
'55 Ford Customline 2dr
'37 Ford Coupe

KMcCullah

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Re: Header choices for '70 F-350?...
« Reply #1 on: April 13, 2015, 03:06:56 PM »
Summit has several options. These look similar to the Dynomax headers that did well in Jay's book.

http://www.summitracing.com/parts/hed-89100/overview/year/1970/make/ford/model/f-350-pickup

If it was me I would be going with a couple of iron manifolds. Save some time and keep from cooking the starter you know....
 
Kevin McCullah


My427stang

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Re: Header choices for '70 F-350?...
« Reply #2 on: April 13, 2015, 03:49:01 PM »
Best fitting on my F100 has been Hedman, they also have ball and cup collectors which I am not sure I like, but they don't leak

I have heard guys have good luck with Summit though, they are generally Flowtechs in a Summit box
« Last Edit: April 13, 2015, 08:30:49 PM by My427stang »
---------------------------------
Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

cjshaker

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Re: Header choices for '70 F-350?...
« Reply #3 on: April 13, 2015, 05:40:52 PM »
Summit has several options. These look similar to the Dynomax headers that did well in Jay's book.

http://www.summitracing.com/parts/hed-89100/overview/year/1970/make/ford/model/f-350-pickup

If it was me I would be going with a couple of iron manifolds. Save some time and keep from cooking the starter you know....

Thanks for that link.
Actually it would be much easier to use the headers than the log manifolds. I can just throw on a pair of mufflers with pipe extensions and call it good. I won't use logs anyway because the engine puts out about 380-400hp and they would choke it pretty good. I've never had any problems with starter heat-soak, and since the trucks are MUCH more open than any of the cars I don't expect any problems with these either. I can reach right through my fender wells on the '68 F-250 and pull the starter without even crawling under the truck. Gotta love that!  ;D

Best fitting on my F100 has been Hedman, they also have ball and cup collectors which I am not I like, but they don't leak

I have heard guys have good luck with Summit though, they are generally Flowtechs in a Summit box

I used the Hedmans on my '68 also, although they are the flanged type, which I also like much better. They fit perfect when I put them on and they're still on the engine now. The ceramic coating didn't last all that long, but the headers have lasted through 20 years of hard use and Ohio winters (read: SALT), so I certainly have NO complaints about them.

I guess I'll give the Hedmans another shot.
Thanks, guys.
Doug Smith


'69 R-code Mach 1, 427 MR, 2x4, Jerico, 4.30 Locker
'70 F-350 390
'55 Ford Customline 2dr
'37 Ford Coupe

KMcCullah

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Re: Header choices for '70 F-350?...
« Reply #4 on: April 13, 2015, 07:08:57 PM »
Ahh I see now. Your not transplanting the average pick-up 390. Gonna be a super dump truck.  8) Mad Dog Headers has some sharp looking fenderwell headers for a 73-79 pick-up with a FE. 2" primaries with a 3 1/2 collector. They look just like the Doug Thorley's I've got for a 73-79. Fitting isn't a problem on the 67-72 body styles.
Kevin McCullah


cjshaker

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Re: Header choices for '70 F-350?...
« Reply #5 on: April 13, 2015, 07:43:53 PM »
Ahh I see now. Your not transplanting the average pick-up 390. Gonna be a super dump truck.  8) Mad Dog Headers has some sharp looking fenderwell headers for a 73-79 pick-up with a FE. 2" primaries with a 3 1/2 collector. They look just like the Doug Thorley's I've got for a 73-79. Fitting isn't a problem on the 67-72 body styles.

Nope, built this engine about 20 years ago. It was originally a 390 Super Maurader out of a '64 Mercury. It had the 3 webbing block with crossbolt nibs. I put a solid lifter Crane cam in it with a Holley 750 and did some massage work on the C4 heads, running about 9.75:1 compression. It pulls REAL strong up to about 5500. This is the first time I'll have had it out and I was going to throw in a new set of bearings while it was out, assuming the previous ones could use replacement. Still doesn't make a bit of noise though, so I'm not even sure it needs them.

Those Mad Dogs look pretty cool, but they only list them for a 4wd with the FE. Fenderwell exit might be a tad overkill for a dumptruck also. 400hp, on the other hand, seems about right for a dumptruck ;D
Doug Smith


'69 R-code Mach 1, 427 MR, 2x4, Jerico, 4.30 Locker
'70 F-350 390
'55 Ford Customline 2dr
'37 Ford Coupe

abyars

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Re: Header choices for '70 F-350?...
« Reply #6 on: April 14, 2015, 02:16:39 PM »
I have some Stan's Tri-y headers on my  2wd F250 Crew Cab.  The driver's side fit like a glove but the passenger side needed a little frame relief to fit.  They are well made.  They aren't extremely close to the starter but I threw on a heat blanket for good measure.  It's best to unbolt the headers to change my starter.  I've ran a set of Hedman headers on my car for 10 years now, they have been great.  I have several buddies using the Sanderson headers in their 2wd '67-'72 trucks and they have had no fitment issues.
Anthony Byars
1970 Ford F250 Crew Cab 390 C6
1955 Chevrolet 4 door sedan
2004 Ford Expedition


Rory428

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Re: Header choices for '70 F-350?...
« Reply #7 on: May 04, 2015, 02:29:53 AM »
From 1988, until last year, I hauled my drag cars to and from the tracks on a 1974 F350 DRW "cab abd chassis" with a 16 foot steel car hauler/ramptruck deck. The first 2 years I used the stock 360 2 barrel, and in that time , I had 3 exhaust manifolds crack and leak. So when I decided to replace the 360 with a 390 4 barrel engine from a 1976 F250 that I did a cheapo rebuild on, in 1990, I installed a new set of Hedman headers at the same time. My Hedmans were just the basic painted versions, with 3 bolt collector rings. The factory applied black paint burnt off almost instantly, and I never repainted them, but they never gave me any issues, other than a couple of blown out collector gaskets , over 15 years. I replaced them in 2005, because I was was replacing the steering box and a bunch of steering and front suspension  stuff, as well as the old dual exhaust system was falling apart. And although the Hedmans were looking pretty crusty, they were still quite solid. I would have bought new Hedmans, but nobody locally had them in stock, but FlowTechs were available, so I bought a pair of those. The FlowTechs looked almost identical to the Hedmans, Both sets fit nicely, and in 25 years, I only ever had to replace 1 starter motor, so I don`t consider the long tube headers to of any concern to  to starter life. The fellow racer that bought my truck last year says the truck still runs great, and the FlowTech headers are now 10 years old, so they should good for a few years yet.My 74 had a NP435 4 speed, and both brands of headers fit the clutch linkage fine. If I ever own another 67-76 pickup with a FE engine, I would not hesitate to buy either brand of headers again. Also, although the Hedman catalog said that the headers did not fit a Camper Special model, I`m assuming due to the front sway bar that fits in between the front radius rods, I installed a Camper Special sway bar on my F350, and both sets of headers had plenty of room to the sway bar.
1978 Fairmont,FE 427 with 428 crank, 4 speed Jerico best of 9.972@132.54MPH 1.29 60 foot
1985 Mustang HB 331 SB Ford, 4 speed Jerico, best of 10.29@128 MPH 1.40 60 foot.
1974 F350 race car hauler 390 NP435 4 speed
1959 Ford Meteor 2 dr sedan. 428 Cobra Jet, 4 speed Toploader. 12.54@ 108 MPH

Drew Pojedinec

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Re: Header choices for '70 F-350?...
« Reply #8 on: May 04, 2015, 08:34:37 AM »
I feel the same as Rory, but I use Flowtech/summit headers on my 76.  No problems with the starter, no overly hot issues, no leaks, etc.
Only issue on install was I needed a minute with the grinder to clear a lil space on the driverside engine perch.  Other than that, It's been 6-7 or something years and 20,000 miles, no problem.

cjshaker

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Re: Header choices for '70 F-350?...
« Reply #9 on: May 04, 2015, 09:09:52 AM »
I ended up getting the HD Hedmans, ceramic coated. The Heavy Duty ones use thicker steel for the tubes and flanges. Those suckers ARE heavy, but weight isn't a factor to me, I wanted the extra durability. They look real nice and I can't wait to use them. I'm still not a fan of the ball collector, but that's about all that's available.
Doug Smith


'69 R-code Mach 1, 427 MR, 2x4, Jerico, 4.30 Locker
'70 F-350 390
'55 Ford Customline 2dr
'37 Ford Coupe

My427stang

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Re: Header choices for '70 F-350?...
« Reply #10 on: May 04, 2015, 03:14:46 PM »
Good choice, just tell yourself it's an "anti-reversion cone"

Other than initially bolting mine up, I haven't noticed the ball and socket is there.  Never leaked and stays nice and tight
---------------------------------
Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

KMcCullah

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Re: Header choices for '70 F-350?...
« Reply #11 on: May 04, 2015, 08:23:09 PM »
I grafted a set of ball collectors to my old crust set of fenderwell headers. The passenger side flange had rotted off and I didn't have the funds to buy a a new pair of headers. I didn't like them at first but I guess I'm over the funky look now.  ::) They do work and don't need gaskets.

Kevin McCullah