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Old 10-08-2008, 08:29 AM
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Intakes

I got a quetions for all early Hemi guy. Are there an 4brail, 3 duces or blower intakes out and what am i lookiing for

thank justin

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Old 10-08-2008, 08:49 AM
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Hi Justin-I requested that this thread get moved from intro up to the engine forum, it'll get seen by more people up there.

Home brew moved it for us.

The intro forum is for introduction posts, technical questions get posted in the proper forum.
Check out our post catagorization page here..
http://www.hotrodders.com/help/board/forums.html

Later, mikey
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Old 10-08-2008, 09:35 AM
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Quote:
Originally Posted by Mackenzie
I got a quetions for all early Hemi guy. Are there an 4brail, 3 duces or blower intakes out and what am i lookiing for

thank justin
For the DeSoto hemi your choices are going to be limited. As I said in your earlier post there were factory 4 bbl. intakes made for the low deck DeSotos but they will only take the small base WCFB carb. Nothing wrong with that but the small base carbs have a pretty low CFM rating, around 380 or so.

HotHeads has 4 deuce and 6 deuce log style manifolds for them but they use the old Stromberg style 3 bolt base 2 barrel carbs which aren't hard to find but can be a bit finicky. A lot of people still use them though.

If someone made a blower manifold for the DeSotos I'm not aware of it. If your motor was a high deck DeSoto (330/341/345) a factory dual 4 bbl. manifold was available but they won't fit your low deck. Chrysler hemis added material to the intake side of their heads when they went to the raised deck (392) so all their manifolds will interchange (with some restrictions) but Dodge and DeSoto didn't follow suit. You pretty much need to find a manifold for a low deck DeSoto. So... keep watching e-bay they do show up occasionally.

Later today I'll add some detail on how to tell the difference between a DeSoto, Chrysler and Dodge intake.

Later...
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Old 10-08-2008, 05:31 PM
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Hi Justin.

A newer style Holley or Edelbrock 4 barrel could be used with a stock cast iron intake by using a adaptor. The adaptors used to be pretty common but have gotten a bit harder to find, but they are still out there.

If your really really good at fabricating even the stock 2 barrel intake could be converted to 3X2s, like the intake shown in the picture below which started out as a single 2 barrel unit.

The 6X2 intake would be kind of neat, but for the displacement of the engine and for ease of tuning I would recommend setting the carbs up progresssively (meaning the until almost WOT you will be running on jsut the center 2 carbs instead of all 6. Here is a video that explains the 6X2 progressive linkage.

http://www.youtube.com/watch?v=zkFIowdvfGo

and one of it running

http://www.youtube.com/watch?v=x5VEbByTEUc


I'm doing a 331 Chrysler Hemi into a 37 Dodge pickup with a 6X2 intake. It's a bit tight, but you should have a bit more room with the slightly smaller DeSoto engine. The picture below is the truck when it was in mockup.
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