I am going to order a new fresh air duct for my '78 300, but im not sure if this is the stock setup, or something that was rigged up. THe old man that had mine before was cheap, but took good care of it, teh picture of the setup in question is in my gallery, Thanks in advance

 

You dont really think that is original, do you?

You may have to try the dealer to get that. Sometimes you will have to buy the plastic piece that comes from the front of the truck too. I found one of these 'fresh air intake ducts' at the junkyard. Had a tiny rip in the flex, but careful application of black duct tape restored it to original! Cleaned up real good, too. Nobody knows that I used tape on it either. Tape is on the inside.

 

The only part that appears not to be original is the flex hose from the breather
to the plastic plenum attached to the front next to the rad. Originally they were blk plastic which tear over time. I dont know if you can get one from ford or not. I liked the suggestion of tape on the inside if one can be located at the wreckers.

 

Heh, i figured that hose was wrong, without the duck tape it looks too much like the black drainage pipe you put in the ground. So now that you guys have helped me clear that up, has anyone used of of the replacements from LMC truck, and if so, what size did you use?? There is a 12", 18" and 24" version. And replacing that hose with the correct one will hopefully be less restrictive than that ribbed U shaped pipe, lol.

 

anyone at all?

 

Let me qualify this by saying I'm accustomed to the farmer way of rigging things up.

I don't know about the LMC model, but I was almost forced to go that route or start scouring the salvage yards. The usual parts stores don't seem to carry anything but round ducts anymore.

I replaced mine recently (on a '76 I6) and finally ended up finding one I could make work from Advance Auto Parts. None of the usual parts stores seem to carry anything but round ducts anymore. Advance only had 2 of the rectangular kind left. From the condition of the boxes you could tell they'd had them for quite some time.

Well it was way too long and had a half twist in it near one end, but it was the right dimensions otherwise. I took the end that didn't have the twist in it, and cut it to the right length. Then I cut out just the ring and clamp section from the twist end and used it to secure the other side of my good piece.

It worked pretty well, and doesn't draw attention by looking all hacked up if you trim and position the loose clamp correctly. FYI, the Advance duct was more rubbery plastic instead of the original fiber kind in case that matters to you. At least I assume that the disentegrating, mostly tape piece I removed was the original...

 

Your duct work is duct work, for a old clothes dryer (uninsulated).

If you feel the need for shiny stuff, I'd suggest a trip down to Lowes/Home Depot plumbing section.

 

I am curious, why even keep that stuff. I removed the whole air cleaner snout, inlcuding the thermo-damper stuff from 1979. As a matter of fact I removed about everything else that was emmissioned related, and it ran great.

Anyone- is this stuff really necessary on a carburated 300.

 

Well, i would like to keep it, and i was also told that it can cuase a ping or somethin, so if its true or not i am not takin any chances. Plus cooler air is denser than the extremely hot air under my hood, os its kinda like a ghetto cold air intake, heh.