Chrysler Aluminum Manifold 4100337

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v8al

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I have a Chrysler factory aluminum small block manifold equipped with EGR. Is this a prototype that never made it to full production or a police car part? It's part number 4100337.
Based on some preliminary research I think this is a late 70's manifold because of the offset thermostat housing. Possibly a 79-80 E58 equipped police vehicle?

Does anyone have any info on this manifold or can look it up in a parts book? Thanks!!!

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Watching.
I can honestly say that I have never seen or heard of one of those before.
The only factory aluminum LA manifold I know of is the six pack.
Well, okay, there were LD340s that carried a factory part number to make them NHRA legal- but strictly over the counter, not assembly line stuff.
This ain't either one.
Any other markings, Pentastars, casting dates?
 
Professor Fate said:
Watching.
I can honestly say that I have never seen or heard of one of those before.
The only factory aluminum LA manifold I know of is the six pack.
Well, okay, there were LD340s that carried a factory part number to make them NHRA legal- but strictly over the counter, not assembly line stuff.
This ain't either one.
Any other markings, Pentastars, casting dates?
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But weren't all the six pack intakes cast by Edelbrock? Whether they had Edelbrock cast in or not?
 
RustyRatRod said:
But weren't all the six pack intakes cast by Edelbrock? Whether they had Edelbrock cast in or not?
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Yes, I believe so (although the big block cast iron six packs were cast by Ma Mopar). But they still were a factory "assembly line" manifold- not just MP/DC/aftermarket.
 
I seem to recall a special intake for the Little Red Express trucks... They were all E58 powered..
 
1WildRT said:
I seem to recall a special intake for the Little Red Express trucks... They were all E58 powered..
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They were cast iron, though. As were every cop LA I've ever seen.
Lil' Reds had an EH1 engine, only slightly different from the cop E58.
 
v8al said:
I have a Chrysler factory aluminum small block manifold equipped with EGR. Is this a prototype that never made it to full production or a police car part? It's part number 4100337.
Based on some preliminary research I think this is a late 70's manifold because of the offset thermostat housing. Possibly a 79-80 E58 equipped police vehicle?

Does anyone have any info on this manifold or can look it up in a parts book? Thanks!!!

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View attachment 1716291890
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Wow ! Looks to be a twin to the late 70s stock 4 barrel intake… here is a NOS W2 version
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They would need to be portmatched . But look at the bolt pattern … see where the teardrop recesses are ? That is where the std holes would be drilled . Also notice the lack of crossover as well as the untapped vacuum, water and egr bosses .
 
Here are the other pics I have. I don't think it has ever been mounted on an engine. I didn't see any other markings, Pentastars, casting dates. Only the 4 on the bottom of the manifold.

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i have a 78~79 4bbl intake that's the twin in steel. i can take some measurements tomorrow and see how it stacks up.

first i've ever seen that in AL-LOO-mini-ummm
 
That is a spreadbore intake. Since the first TQs arrived in 1969, I don't see how that intake would be for a 273. QJs arrived 1966, so may be made for a QJ.
 
Bewy said:
That is a spreadbore intake. Since the first TQs arrived in 1969, I don't see how that intake would be for a 273. QJs arrived 1966, so may be made for a QJ.
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Part number shows it as a late 70s early 80s piece .
My guess is a Direct Connection part aimed at a specific class of racing . Like my cast iron W2 manifold.
 
4100337 Part number? Could that number possibly be casting #, and part number is maybe 4100336? Regardless, looks like 1979-80 number [( worked in Material Control then at Chrysler)or was laid off]. I'll guess 1980 Lil Red Truck prototype part, some trucks were produced, not more than 5 maybe? Maybe cop car though, I had a 1979 Grand Fury, I believe E58, big car but fat dog slow.
 
mbaird said:
Part number shows it as a late 70s early 80s piece .
My guess is a Direct Connection part aimed at a specific class of racing . Like my cast iron W2 manifold.
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Unless it’s just his pic or my eyes it looks like the T stat opening is on a hell of an angle. Kim
 
oldkimmer said:
Re read the thread. We are talking about 3 totally different intakes here. Kim
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I'll take my info and conversation down to help reduce the conversation. The blue painted intake is the one from the OP.
 
mbaird said:
Part number shows it as a late 70s early 80s piece .
My guess is a Direct Connection part aimed at a specific class of racing . Like my cast iron W2 manifold.
Click to expand...
I agree on the date range - specifically 1979. The casting number 4100337 is right in between these other 1979 manifolds:

From another thread on this site:
I have a parts list from 1979. It shows the same 4v intake manifold for both engines - part No. 4100339, casting No. 4100340. It's from a '79 production weights chart and shows the weight at 49.5 lbs. For the 2v, it shows 360 2v as 4100333/4100334 and 318-2v as 4100330/4100331
 
From looking at the Chrysler parts catalogs, intake manifolds starting with 4100--- were only used in 1979.
Intake casting numbers and catalog part numbers are usually different by one digit.
Casting number 4100337 has a catalog part number 4100338. The 1979 Chrysler parts catalog shows only one 4 barrel manifold for all vehicles 4100338.
Direct connection numbers usually start with a P.
Don't see that number with or without P in any of the Direct Connection catalogs.
None of the part numbers shown in the link from post #23 are good numbers.
They are not in Chrysler's part number history.
 
Is this the only writing on that tag.

I know Bob Torozzi did some testing for Chrysler in that same time period. He ran dyno work on turbo charging every Chrysler motor. He was up in central coast California. I try to see if handwriting matches. He said he had pallets of intake manifold he sent back to Chrysler.

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