I’ve got this intake that I thought was off a 55 or 56 300. I’m not exactly sure by casting number and haven’t been able to find
The casting number 1634285 is for a '55 300. The casting date 5/20/57 is indeed a conundrum! Could it be that it was cast in '57 for a replacement? Unlikely at best.
Ignore the coil bracket. I believe the intake was on a non 300 engine as the 300 engines had a bracket welded to the left valve cover for the coil. The 300's were the only hemi that had a left and right valve cover.
Were there "non 300" engines that had dual quads? The only ones I am aware of were the Desoto Adventurer, but the thermostat housing was part of the intake manifold. This one doesn't have that. And I don't believe there were any polyspheric motors that had dual carbs either.
Guys........Chrysler Intake manifolds fit '55 thru '58 (331/354/392) passenger car engines. The 392 had a higher block deck height to accommodate the longer stroke, but 392 heads have a modified manifold mating surface to compensate for that....so the effective 392 mounting surface was the same as 331/354. Consequently, the product date is consistent with use on a production 392...as well as being the same casting design as a '55/'56 (331/354) 300/300B. The Poly and hemi engines have the same mounting surface dimensions, so this manifold can have wide application (301/331/354 poly in addition to the '55/'58 hemis) regardless of it's original intended use. Ray
I was not clear. The 2x4 manifold was likely on a hemi that was not a 300. The intakes can easily be swapped between these engines. After 64 years all sorts of things could have happened. I was speculating about the coil bracket.
Possibly the '57 Dodge D501....which was a factory race car that was built with Chrysler 354 engine. I have only ever seen one in the flesh (tin). I don't recall the carb setup....may have been single 4 bbl. The car I saw was the 'ex Arnie 'The Farmer' Beswick's car he campaigned before he switched to Pontiac. Ray
Desoto manifolds do not fit Chryslers......or Dodges, except for the 325/326 Dodge poly used in Desotos in '57...which is, of course, a Dodge engine and manifold in the first place. The 325/326 was only ever equipped with a single 4 bbl, not dual quads. (there are some aftermarket performance Desoto manifolds that are rumored to be close or the same as Dodge high deck (315/325) engine dimensions and can be made to fit with bolt hole pattern modifcations.....and/or.....machining the angle where it meets the heads. Some of those castings have evidence of two bolt bosses in the same general location that would give some credibility to that rumor.) Ray
1955 300 1634285 That '57 casting date has me befuddled, that don't take much! 1956 300B 1731686 1957 300C 1733477
@270dodge don't be so hard on yourself..... It "doesn't take much" for a part to get a new casting number even though it may retrofit an earlier application. Some times it may not, but in this case, I think any of those manifolds fit any of the engines listed in my post #8 above. I have been wrong before, and will be again....but the info above is, I believe, correct. If not, I'd be glad to know where I went off track. Ray
Sorry - thought it was a general question, not compatability. I know they are not interchangable. Sent from my iPhone using The H.A.M.B. mobile app
Maybe this link will help: http://www.thecarburetorshop.com/Multiplecarbmanifolds.htm If there are corrections or additions, please let me know. Jon
That is the correct intake for the 392 300 engine. I'm seeing dodge covers (they have round bumps. Here are my 300C covers still showing the gold paint. With that coil bracket.
Jon, it appears that none of the manifolds in this thread are listed in your document. @270dodge listed the numbers for the following: 1955 300 1634285 would be a 331 CI motor 1956 300B 1731686 would be a 354 CI motor 1957 300C 1733477 would be a 392 CI motor
It's a Chrysler marine intake manifold. The lone water outlet flange is where the big brass thermostat housing bolts to.
Thanks, this is exactly why I asked for corrections/additions. My GM sources are MUCH better than my other sources. At one time or another, have had most (not all) of the listed GM manifolds. I will update the list. Again, thanks. EDIT: Additions have now been posted. Any others will be welcome. Jon.
Yes....and believe it or not, I do know that and 'thought' I typed "Arnie"......maybe I made a typo...maybe this @%&*^ auto correct bit me!........ (I did take the opportunity to edit that....) Ray
Being a marine intake has anybody used this on the street. Other than blocking off water, intake looks exactly like 331-354 300
Don't see why you couldn't use that manifold in an automotive application. One word of caution though, the center port used for carb heat which normally uses exhaust in an auto application uses water on the marine engine, I believe the port is in a slightly different location on that manifold so make sure your gaskets line up right.
Don't have the desire to go look for the reference now, but the 1957 Dodge 325 hemi is listed as putting out 285hp with a single WCFB, or 310hp with a dual set of WCFB carbs. Then there was also the 354 that found it's way into a few Dodge engine bays. -Dave edit: Weiand did, and others may have, made low deck Desoto intakes that could be also machined to fit the tall deck Dodge engine.
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