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The oddest intake I've ever found... Fixed!

shady

shady

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I bought this for the chrysler 360 in the cordoba were putting together for my buddy.

Stock casting number places it as coming from a dodge little red wagon pickup truck in the 70's according to a couple mopar forums I found.

This hole and odd fitting go directly into the exhaust passage under the intake. I'm assuming for the EGR. But I've never seen anything like it :dunno:

My plan was to heat the intake up with a propane leaf burner to real hot. Then drop a cut off head of a carriage bolt in each hole and braze them in to seal it.

Then set it on a pile of sand and fill it/ bury it with more and leave it alone for a day to cool.

Sound about right?
I don't have an arc welder or I'd just grab high nickel rod instead of

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Can't you just drill and tap? Epoxy/loctite to keep them in place?

Oldsmobile did the exact same thing, EGR injection as I recall.

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It looks like something is already in one of the ports, are they already threaded? I know the Olds ones were, but I can't remember if they were some weird thread or just NPT. They weren't threadlocked in, and they stayed at least.
 
The one side is just a hole. No threads. The nozzle deal in the other side has 2 holes in it. And does have six sides I can get a socket on. So I'd guess threaded :dunno:.
Haven't messed with it much. Brought it home Saturday.
I do still have to fix the notch in the one port though. A gasket will probably seal it, but I'd rather not chance it.
 
I found it on CL 3 hrs away. Then found out my brother in law was 20min away from it at his GFs family for Christmas.

So he picked it up for me. If I had seen it in person I may have second guessed it. But I'm sure we can make it work fine.
 
Somebody hammered a screw driver under that to break it loose.

I keep an arc welder around just for cast material.
 
It may be worth money for a restorer who has a little red wagon,and wants it 100% numbers matching.

I remember some Mopar V8 intakes having "floor jets" under the carb like that,most were removeable and had threads,so blocking them off with a bolt was pretty easy..

I'd be leery of welding or heating the intake up,if it doesn't crack somewhere it will at least warp some..

I'd say drill & tap the holes with the closest NPT pipe thread and use allen head pipe plugs ,use something like Indian Head Gasket Shellac on the threads and only tighten them "firmly" as the tapered thread & plug can act as a wedge if you crank them down too tight..

I've put the gasket shellac on a few threaded things before,and once it hardens up the fastener ain't coming loose again without heating it up real hot..I've had bolts snap off I put some on before they would break loose when I tried removing them..poor mans red Locktite!..
 
I've had my eyes on an arc welder for a long time. Actually my favorite type of welder. But every time a deal rolls around something else comes up I deem more important :doah:.

I'm actually more leary of tapping it than brazing it. But I think I will try that first.

Ive done the heat and cool down cycle before on cast iron motor shells when I worked in an electric motor rewind shop.
But we had a 700* oven I could heat it up in, then put it right back in after repair.
Then we just shut the oven off and the insulation allowed it to cool slowly.

I bunch of only stuff I read has said the bury in sand thing works good... :dunno:

Instead of welding I thought about maybe just coating the bottom of the head of my carriage bolt idea with a gas resistant sealant and leaving it long enough to washer and nut the back side. Then tack weld the bolt/nut so it can't back off.
 
The bigger question is why do you even want to plug those holes inside the manifold? Just place a block off plate over the hole on the outside of the manifold and be done.
 
Because I don't want fuel pooling up underneath it
 
I can't exactly tell how those are cast, but if I am inferring correctly from what I can see, the EGR looks to be a plunger that blocks off the exhaust from the intake when its at rest. Without the EGR in place to block the round "feed hole" from the exhaust, looks like it would be a vacuum leak? (Even with a blockoff plate, as it looks like the passages to the intake ports are fore and aft, that would not be sealed with a block off).

I'm assuming the passenger side cavity is for the choke, EGR is on driver's side.
 
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4X4HIGH said:
It wont "pool up". The engine is a vacuum and the fuel gets sucked into the intake runners.
Click to expand...
I've looked down in a few different carbs over the years after it was off and seen small amounts of fuel sitting in the casting and ridges at the bottom. So in order to prevent it from gathering any amount over time, I'm going to plug, cover, or cap them in some way.
May be unneeded, but it will make ME feel better. :waytogo:
Any time you push the pedal gas shoots out. And it can and does happen when it's not running at times. Like pumping it before hitting the key when it's cold.
The vaccum isn't going to suck it all out of the holes. Sure it may evaporate due to engine heat and some will be pulled out. But maybe not. So that's why I feel better by doing it.
 
I thought JB weld was considered the state tool of Iowa? Lol.
Fill those notch with it and file them down. Then fill the holes with it.
Simple repair. Don't over think it.
 
Personally have never made that crap work. It's never worked once for anything I've used it for...:dunno:
Maybe I are dumb... But I just don't like it lol.
Plus I'm afraid of chit coming loose and going through the engine
 
shady said:
Personally have never made that crap work. It's never worked once for anything I've used it for...:dunno:
Maybe I are dumb... But I just don't like it lol.
Plus I'm afraid of chit coming loose and going through the engine
Click to expand...
A good two part epoxy won't come loose. Ever.
I can understand your reservation thou.

Why even bother? Why not just buy an aftermarket performance model?
 
Cheap. This was $75. And the cheapest aftermarket I found was $200+. And that was square bore. I have a re-built qjet sitting around. Cheapest spreadbore intake I found was just shy of $300.
 
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