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F350 exhaust

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Chad9

F350 exhaust

For an F350, 460/C6, 2wd SRW, is there any difference in the exhaust, (routing, pipe size, mounting points) between it and a similar F250? I want to replace the exhaust on my truck, and I find a few bolt on (i don't weld) kits for similar F250's but nothing for F350"s. LMC has a bolt on one for the F250....Anyone know any other retailers selling a kit that might work? Thanks to all

Matt
1983 Ford F350 2wd SRW, 460/C6, Holley 600CFM

1987 Dodge Omni 2.2, Weber 32/36

ArdWrknTrk

Re: F350 exhaust

Administrator

There were no differences I know of, as long as the wheelbase is the same.

460's had dual 2 1/2" head pipes all the way to the muffler, with a single flange.
Single outlet
Then a one piece tailpipe.

There was a wrap hanger on the oval muffler.
A stay to the right hand head pipe from the inside of the frame rail under the passenger.
A spring mount to the tailpipe behind the muffler
And a peg like hanger rod behind the rear wheel.

Try to avoid crinkle bends like Walker. They cause turbulence and rust out fast.

I made my own from the head pipe flange back.
Using a 14Ga. welded school bus muffler and a stainless Magnaflow tailpipe.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

85lebaront2

Re: F350 exhaust

Administrator

Jim, the 1983 and early 1984 460s had a single pipe from the Y to the muffler, it was a mid 1984 change to the dual pipes. The other item, the basic system is for a 133" wheelbase, 155" uses a 22" extension section and 168" a 35" extension section.

Bill AKA "LOBO" Profile

"Getting old is inevitable, growing up is optional" Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator Wife's 2011 Flex Limited Daily Driver 2009 Flex Limited with factory tow package Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413

Chad9

Re: F350 exhaust

yeah it is a single pipe from the Y to the muffler

Matt
1983 Ford F350 2wd SRW, 460/C6, Holley 600CFM

1987 Dodge Omni 2.2, Weber 32/36

ArdWrknTrk

Re: F350 exhaust

Administrator

Do you have an LMC part number, because I'm not seeing it.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

Chad9

Re: F350 exhaust

48-5513

Matt
1983 Ford F350 2wd SRW, 460/C6, Holley 600CFM

1987 Dodge Omni 2.2, Weber 32/36

ArdWrknTrk

Re: F350 exhaust

Administrator

For EFI Trucks that had a cat.
'87-'96 manufacture date.

I don't think the early truck head pipe is going to end anywhere near where that one starts.
But a good muffler shop could make up a bend for you.

Just don't let them weld it in.
That's always a nightmare!

It's also backordered...

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

Chad9

Re: F350 exhaust

Oops, yup I missed that the year was 87 and up. Time to whip out the readers lol.

Question remains, anyone know of a kit to fit this truck?

Matt
1983 Ford F350 2wd SRW, 460/C6, Holley 600CFM

1987 Dodge Omni 2.2, Weber 32/36

ArdWrknTrk

Re: F350 exhaust

Administrator

The thread title is "F350 exhaust"
Where do you want to start the system?
What kind of muffler do you want?

Are you set on rear exit duals?
Because you can't get true duals without going to the later head pipes.

I understand that you have no way to weld it yourself.
But plenty of pipes can be clamped or flanged together.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

85lebaront2

Re: F350 exhaust

Administrator

This post was updated on .

In reply to this post by Chad9

Bad thing is, I think I still have the original head pipes off Darth the connection to the muffler or extension was cut off years ago, the EFI/E4OD head pipe assembly is way longer, runs back behind the transmission crossmember.

Best source I have found to at least get an idea is Walker's on-line catalog. Even if you don't buy their parts it gives you a good picture of the system.

Bill AKA "LOBO" Profile

ArdWrknTrk

Re: F350 exhaust

Administrator

So Bill, do you know if the single head pipe outlet is 3"?
Do you know which flange it ends with?

I'm assuming the tailpipe is 3" all the way out.

There may be some universal stuff that is better quality than what remains of Walker.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

85lebaront2

Re: F350 exhaust

Administrator

According to the diagram it is 2 1/2" to the muffler then 2 1/4" tailpipe. For the later (through 1987) it shows dual 2 1/2" pipes to the muffler then a 2 1/2" tailpipe from it. Darth still has the original muffler and tailpipe that was put on in the Oakville Ontario Canada truck plant 34 years ago and the muffler and tailpipe are one assembly.

Where it gets interesting is the 1988-92 system it has the dual headpipes into the catalyst, then a 2 1/2" connection to the muffler and dual 2" tailpipes. By 1996 the converter and intermediate pipe were both 3", but still had the dual 2" tailpipes.

Bill AKA "LOBO" Profile

ArdWrknTrk

Re: F350 exhaust

Administrator

And the 1995 F450 had a 3"Y pipe, no Cat and a single 3 1/2" outlet!!!

Ok, so a 2 1/2" in out muffler and mandrel bent tail pipe.

I like the stainless products available from Bear River Converters.

I would definitely want the largest welded muffler I could fit, given the tiny pipe size.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

ArdWrknTrk

Re: F350 exhaust

Administrator

Matt*, I looked into this.

There is a mandrel bent tailpipe available: AP 54755.
It's under $15 on Rock Auto.

I'd go with the bigger, better muffler.
Walker 17785.

You'd need their #35460 rubber hanger in the rear.
2 1/2" exhaust clamps are #35337.
A hanger to fit the 7" diameter muffler would be #35502.

If the stock head pipe doesn't reach there is an extension, #42596.
Aftermarket parts often don't join in the same places as stock, because they wouldn't expect a garage to remove the bed or rear axle to get it to fit in.

Hope this helps

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

85lebaront2

Re: F350 exhaust

Administrator

In reply to this post by ArdWrknTrk

Damn, that would have been a nice upgrade on Darth!

Bill AKA "LOBO" Profile

ArdWrknTrk

Re: F350 exhaust

Administrator

Darth is an '86.
Doesn't he have dual head pipes?

I'm not a fan of rolled seam mufflers.
My truck has a 14Ga. all welded 2 1/2" dual inlet muffler intended for a 455 international school bus.
It is $86 from Walkers Commercial catalog.

The spacing is right.
All I had to do was weld flanges on it.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

Gary Lewis

Re: F350 exhaust

Administrator

I'm reading the mail here and thinking of what I want on Big Blue. IIRC Scotty said a a 3" single is good, but 2 1/2" duals work well. Does that sound about right? I'd really like duals, and the muffs will be Magnaflow, but I need to get the rest sorted.

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

ArdWrknTrk

Re: F350 exhaust

Administrator

Mine is 3" out.
It seems okay for the displacement and the rpms I see.

I personally want the least *stuff* under my truck I can.
And, I'm *frugal*

so if I don't need to pay for TWO exhaust systems, and I can retain my spare tire, I'm not going duals.

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

ArdWrknTrk

Re: F350 exhaust

Administrator

In reply to this post by Gary Lewis

How big are the collectors on those L&L's???

Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.

Gary Lewis

Re: F350 exhaust

Administrator

3" collectors on the L&L's. What'cha thinking?

As for the spare, it is in the bed and hopefully will be on the rear bumper some day. And there will be a 38 gallon gas tank underneath anyway, so no chance of placing the spare there.

Gary, AKA "Gary fellow": Profile