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Mystery Intakes - 1961 Dated Hemi 2x4 Intakes
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57burb
Posted 2020-03-02 3:41 PM (#595084)
Subject: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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Part number 1733477 is the standard 2x4 intake manifold for '57 300C and '58 300D 392 Hemi engines. So I would be expect to find these cast anytime from late 1956 through perhaps 1959. But 1961?

Both of these intakes have a casting date in September 1961, one on the 15th and the other on the 18th. I'm trying to think of a reason these would have been cast. Marine engines? Refreshing dealer inventory for service replacement parts? I don't think trucks or industrial engines ever got a single 4-barrel Hemi, much less a 2x4.

I'm just bringing this up because it seemed interesting. Maybe someone out there can solve the mystery?



Edited by 57burb 2020-03-02 6:18 PM




(B235F573-C3EC-4AB3-AC8F-F2EBD5C17F18.jpeg.jpg)



(20200129_230247.jpg)



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finsruskw
Posted 2020-03-02 3:52 PM (#595085 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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Industrial or truck most likely
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jboymechanic
Posted 2020-03-02 4:42 PM (#595088 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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I can't help you, but those 4 barrel openings look pretty sloppy. Did somebody hack that manifold up?
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60 dart
Posted 2020-03-02 5:35 PM (#595091 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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its most likely a 62 , 413 fit -------------------------------------------------later
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57burb
Posted 2020-03-02 6:30 PM (#595098 - in reply to #595091)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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finsruskw - 2020-03-02 2:52 PM

Industrial or truck most likely


Every truck and every industrial Hemi I have ever seen had either a 1-bbl, a 2-bbl, or a pair of 1-bbl carburetors. Like I said, I've never even seen a single 4-barrel on one of those engines, much less a pair.

jboymechanic - 2020-03-02 3:42 PM

I can't help you, but those 4 barrel openings look pretty sloppy. Did somebody hack that manifold up?


Yes they did. Probably trying to put an AFB or something like that on it that had bigger throttle plates than the WCFBs.

60 dart - 2020-03-02 4:35 PM

its most likely a 62 , 413 fit -------------------------------------------------later


Pretty sure a B/RB intake won't fit a Hemi.



($_35.jpg)



(37a9223b71a022bb261d235dd5954e98.jpg)



(2832340-3eea5fe588e5a870bea95307ed6f3c06.jpg)



(hemi.jpg)



(dodge4.jpg)



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StillOutThere
Posted 2020-03-02 9:06 PM (#595106 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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I think the latest casting date I have seen for the '57-58 Hemi dual quad intake #1733477 was 1964. The MoPar corporate parts department kept receiving orders for them from racers and they ran out of inventory a few times. So they simply got out the molds, updated the date, and cast some more.
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57burb
Posted 2020-03-03 12:00 PM (#595129 - in reply to #595106)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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No kidding. Well, that would explain it! Seems interesting that the racers were requesting the "flat" 392 intake instead of the better-shaped 331/354 300 intake.

After 1964, the B/RB was making so much more power and the 426 Hemi was coming online, that there wouldn't be much demand for 2x4 intakes for an old dinosaur Hemi.
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Mopar1
Posted 2020-03-03 12:48 PM (#595132 - in reply to #595129)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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57burb - 2020-03-03 11:00 AM

No kidding. Well, that would explain it! Seems interesting that the racers were requesting the "flat" 392 intake instead of the better-shaped 331/354 300 intake.

After 1964, the B/RB was making so much more power and the 426 Hemi was coming online, that there wouldn't be much demand for 2x4 intakes for an old dinosaur Hemi.
The 392 was the Hemi of choice in drag racing for many years. Didn't know about the later castings though.
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Powerflite
Posted 2020-03-03 4:16 PM (#595144 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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Yes, the dual quad setup was a dealer option for many years after the cars came out, so it was an easy way to upgrade the performance of either your Chrysler daily driver or custom drag car. I believe that these dual quad setups first came out in '56, so did they start with the '56 300 manifold and swap to the '57 style later? But these could have been sold to 331 & 354 owners as well, of course. The 392 hemi was king of the hill until the 426 became widely available in 1966, but most drag setups in the later years were using blowers.
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StillOutThere
Posted 2020-03-03 4:28 PM (#595146 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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The 2 x 4bbl intake manifold was introduced on the 1955 Chrysler 300. It is a different casting than the '57-58 300 manifold which is lower to attain more hood clearance. Also it is less in width because the '57 392 is a raised block engine. The width between the ports is wider side to side for the 392. 55-56 does not interchange with '57-58. 55-56 style can be installed on a '57-58 Hemi by using spacers at the heads to make up the width difference.
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57burb
Posted 2020-03-03 6:23 PM (#595151 - in reply to #595146)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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Chrysler revised the 392 cylinder head to allow any standard 'wet' Hemi intake to work on the engine. In other words, the '55-56 intakes will physically bolt on and work, but you will have hood clearance problems on any '57-58 Chrysler that came with a 392. So I'm not sure what they gained by keeping the intake interchangeable, but different, and making it so the cylinder heads aren't interchangeable. But that's how they did it. One other thing they did was change the cylinder heads for '57-58 to accommodate the water crossover used in '55-56.

The intake spacers are required if you run the desirable '55-56 "triple nickel" 331/354 heads on a 392 block.
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Powerflite
Posted 2020-03-03 8:43 PM (#595158 - in reply to #595151)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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The "wet" intakes are 1951-1954 and all industrial, truck & marine. They are called wet because they have the radiator inlet connection on the intake, similar to a DeSoto hemi. Those will work on a 392 if you block off the crossover ports and use the appropriate intake gasket with the taller water connections, but they didn't have any dual 4 intakes, and very little, if any, aftermarket intakes either. Also, the reason why they kept the crossover dimensions the same as before is then they could use the same crossover & water pump for both the 354 poly and 392 hemi in '57-'58. The same parts for both motors.

Edited by Powerflite 2020-03-03 8:44 PM
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StillOutThere
Posted 2020-03-03 9:23 PM (#595162 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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The '53-54 dual quad intake of the New Yorker Specials



(DSC_0060.jpg)



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Mopar1
Posted 2020-03-03 9:34 PM (#595164 - in reply to #595162)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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StillOutThere - 2020-03-03 8:23 PM

The '53-54 dual quad intake of the New Yorker Specials
Special made ones for racing in Mexico. The pictured one has normal casting # for the 57-8 300 engines.
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Powerflite
Posted 2020-03-03 9:37 PM (#595165 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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Very cool! I had never heard of them. So did these come out in '53 or much later? I ask because what air cleaner would they have used that early? 1953 6cyl Corvette maybe? Also, I didn't think the WCFB came out until the 1954 models.

Edited by Powerflite 2020-03-03 9:45 PM
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StillOutThere
Posted 2020-03-04 9:24 AM (#595193 - in reply to #595164)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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Mopar1 - 2020-03-03 8:34 PM
StillOutThere - 2020-03-03 8:23 PM The '53-54 dual quad intake of the New Yorker Specials
Special made ones for racing in Mexico. The pictured one has normal casting # for the 57-8 300 engines.

 

The pictured one is casting number 1530220.   It is not the same as '57-58 !





(1530220.jpg)



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StillOutThere
Posted 2020-03-04 9:31 AM (#595194 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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There was no factory air cleaner engineered for the handful of '53-54 New Yorker Specials with dual quads. Aftermarket Hellings and Stellings units were used.



(DSCF7235.jpg)



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StillOutThere
Posted 2020-03-04 9:46 AM (#595197 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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'53-54 New Yorker Specials had the Ausco-Lambert disc brakes on all four wheels with a power brake booster. They have "Imperial Suspension" (large bearing Imperial rear axle, large bearing front spindles, Imperial coil springs front and Imperial leaf springs rear. These are solid lifter engines with adjustable tappets and roller rockers. The single WCFB carb or dual quad setup was available at owner's choice. I do not know who ordered the dual quad cars as I do not know what sanctioning body would have permitted their use.

The car shown is the only known survivor. It came with the story that it was ordered by a Middle Eastern Shah as his entry in the Carrera Mexicana. When he learned his race entry was declined, he refused to take delivery from Chrysler Corporation. A Detroit dealership picked it up and put the car on their showroom floor to increase public interest in their new cars. That worked for a period of time and then it placed in back room inventory. A next door neighbor, Wesley Crites, to the dealership owner was a Detroit industrialist and the two had breakfast occassionally. Crites inquired about the car, purchased it and street drove it until 1958 when it was placed in the barn at the family farm and moved to a storage unit some years after his passing. Crite's widow tells the story that he was once clocked by the Michigan State Police exceeding 140 MPH.



(1953ChryslerPanAm20168.jpg)



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57burb
Posted 2020-03-04 9:58 AM (#595198 - in reply to #595084)
Subject: RE: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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Wow, that is an awesome piece of history...
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Powerflite
Posted 2020-03-04 1:37 PM (#595210 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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That one is a 1953 New Yorker. I have always liked the '52 because of the awesome hood ornament on them, but now I would rather make a clone of one of these. Do you know why the car was rejected? Was it because of the dual quads? Do you have pictures of these roller rockers? What did that mean - roller bearings between the rockers & shaft or a roller at the valves? Why didn't Chrysler use these roller rockers on the later race motors - or did they? I assume that these valve covers would have been the first to receive the bumps in them to make room for the valve adjusters. What compression ratio did they use? How about exhaust manifolds? Did they use the 4 bolt truck versions as well or just standard 1953 manifolds? I'm not sure when those 4 bolt manifolds originally came out. Give one of these old 331 motors enough compression, cam & breathing capability, and they have the potential to really haul.



(1952 Chrysler Hood.jpg)



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300XMAN
Posted 2020-03-04 4:09 PM (#595216 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes


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Page 59 of "Operation Mexico! Carl Kiekhaefer vs the 1951-1953 Pan American Road Race" has a photo of Kiekhaefer Corporation employees working on a disassembled 1953 PARR FirePower V8 for one of Carl's entries in that year's race. There exists an itemized list of factory parts that made up the "CHRYSLER HEAVY DUTY PACKAGE", dated (as of) September 22, 1953.
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StillOutThere
Posted 2020-03-04 5:59 PM (#595223 - in reply to #595084)
Subject: Re: Mystery Intakes - 1961 Dated Hemi 2x4 Intakes



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Everyone interested should get the book "Operation Mexico" !
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