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Old Apr 10, 2011 | 11:31 AM
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Exhaust System

Hey guys! I've got a 1985 Ford F-150 with a 4.9L 300 Six.

I am looking for an entire exhaust system, I just don't know where to get it for my year/make/model truck...


If you know where I could buy it, let me know!
 
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Old Apr 10, 2011 | 11:41 AM
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Originally Posted by Wicked Endings
Hey guys! I've got a 1985 Ford F-150 with a 4.9L 300 Six.

I am looking for an entire exhaust system, I just don't know where to get it for my year/make/model truck...


If you know where I could buy it, let me know!
Google it. I know JEGS, & NPD sell them.
 
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Old Apr 10, 2011 | 11:45 AM
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I googled a lot of them, but I trust the guys on FTE, so I always ask for the advice of you guys.

I'll look at NPD.

EDIT: NPD doesn't even sell my year exhaust system... :P
 
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Old Apr 10, 2011 | 05:47 PM
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Doubt anyone makes a bolt in deal. Probably run you $500 or less at a local exhaust shop. I'd recommend since you'll be doing the exhaust to snag a dual outlet exhaust manifold off a newer fuel injected big six before doing the exhaust. It should give a slight performance improvement.
 
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Old Apr 10, 2011 | 05:57 PM
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Originally Posted by cadunkle
Doubt anyone makes a bolt in deal. Probably run you $500 or less at a local exhaust shop. I'd recommend since you'll be doing the exhaust to snag a dual outlet exhaust manifold off a newer fuel injected big six before doing the exhaust. It should give a slight performance improvement.
They make a bolt in system for the 4.9, I've seen them, just can't remember where. I'll have to check after while and see where.
 
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Old Apr 10, 2011 | 09:09 PM
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Switch to EFI split manifolds, the increase in power is quite noticeable.
You can then use a Walker 45166 y-pipe. They also make a direct fit cat, muffler, and tailpipe, I'm not sure about the part numbers for those.
A lot of people also choose to go with a turbo-style muffler after the y-pipe, and dump just in front of the rear tire. Usually sounds pretty good.
Here's some good pics:

1981 Ford Bronco Exhaust Upgrade pictures, videos, and sounds | SuperMotors.net
 
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Old Apr 11, 2011 | 04:31 PM
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Originally Posted by Wicked Endings
Hey guys! I've got a 1985 Ford F-150 with a 4.9L 300 Six.

I am looking for an entire exhaust system, I just don't know where to get it for my year/make/model truck...


If you know where I could buy it, let me know!
Not too sure on how much difference between a 85 to a 87 ( I know there is a gen break, but not too sure how much difference under the chassis) but we do have two systems that MIGHT work for you. This is for 87-96's though.

Dynomax PN 17447 (2.25 pipe diameter)
Dynomax PN 17312 (2.5 pipe diameter)
 
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Old Apr 11, 2011 | 04:42 PM
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87-96 would be fuel injected. Aside from that the frames are the same. So basically you'd need a split outlet manifold from a fuel injected truck then you should be able to use the Dynomax bolt on exhaust.
 
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Old Apr 11, 2011 | 04:47 PM
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Originally Posted by cadunkle
87-96 would be fuel injected. Aside from that the frames are the same. So basically you'd need a split outlet manifold from a fuel injected truck then you should be able to use the Dynomax bolt on exhaust.
One of the very first posts I made on this board was how much knowledge there was here, and you provided a little more for me!
 
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Old Apr 11, 2011 | 04:48 PM
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I'm pretty sure that the Walker part # I posted above is what you would get from Dynomax-they are one and the same.
 
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Old Apr 11, 2011 | 05:24 PM
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Originally Posted by newrider3
I'm pretty sure that the Walker part # I posted above is what you would get from Dynomax-they are one and the same.
Walker and Dynomax have the same parent company. But a lot of the mufflers have different designs internally.

PS your post was another "learning post" for me as well.
Thanks for sharing.
 
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Old Apr 12, 2011 | 03:50 AM
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The walker Y pipe is large internally but often the hole in the one pipe where they are welded together is a restriction.
You can take a 1 7/8" hole saw with an extension and open it up.
(these pic's are from Josiah's 300 build thread)

Stock EFI split manifold, individual pipes:



EFI manifolds, Walker Y pipe:



This is a view inside the Y-pipe with the hole cut out where the rear pipe is fishmouthed and welded onto the front one:

 
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Old Apr 12, 2011 | 10:55 AM
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Found a guy on YouTube (sounded like an old man) put true duals on his 300 with Flowmaster Super 44's, no cats. It honestly sounded like a V8. Very very mean. I was very much impressed.
 
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Old Apr 12, 2011 | 11:24 AM
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What is "old"?
 
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Old Apr 12, 2011 | 12:20 PM
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Uh.. that wasn't you, was it?

If so, oopsies!

Is your truck blue?
 
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