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Offenhauser 5370 (4-barrel intake)
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Author:  Bren67Cuda904 [ Fri Aug 04, 2006 3:24 pm ]
Post subject:  Offenhauser 5370 (4-barrel intake)
Can't find a picture of it and where do you recommend one buy one? I just found one website for this manifold.
Or does anyone here have an extra one they would like to sell?
Author:  Reed [ Fri Aug 04, 2006 3:32 pm ]
Post subject: 
http://www.offyparts.com/

Specifically:

http://www.offyparts.com/product_info.p ... 6a509d4a70

The price is a bit steep at $320 for a new manifold. I would shop ebay, swap meets, and local classifieds before buying new. I picked up my offy intake never been installed for $60.
Author:  SlantSixDan [ Fri Aug 04, 2006 3:42 pm ]
Post subject: 
These go by fairly regularly on eBay...keep eyes open!
Author:  Bren67Cuda904 [ Fri Aug 04, 2006 7:08 pm ]
Post subject: 
do I have the part number wrong? 5370? or 5270
for automatic Barracuda 5270A?
Ebay for sure just need to be sure what I am bidding on. :twisted:
The Clifford one come with EFI bosses yes?
I plan someday to FI this engine, but I am looking for more low end torque which Offy should diliver.
Author:  SlantSixDan [ Fri Aug 04, 2006 7:50 pm ]
Post subject: 
P/N is 5270. Searching by P/N on eBay won't get you very far...?
Author:  Bren67Cuda904 [ Sat Aug 05, 2006 11:47 am ]
Post subject: 
I am unclear about a couple of things.
Quoted "Intake manifold heat helps fuel milage and cold engine operation.
No heat on the intake helps you get max power. If it is a street car that you drive a lot and you have the Offy intake, I would use the intake heat feature. (keep the heat riser valve operational)"

I plan on using the Durta Duals. (rear manifold just cut and sealed off)
The factory setup has the exhaust and the intake gasketed and bolts to one other just below the carb. Does the Offenhauser set up this way? Can they be bolted to each other? If not wouldn't the exhaust leak at this point? Doesn't the Offenhauser intake have a coolant circuit for this adding of heat?
I would think that sealing off the front branch and the heat riser would be the correct way.
Author:  SlantSixDan [ Sat Aug 05, 2006 12:08 pm ]
Post subject: 
Quote:
"Intake manifold heat helps fuel milage and cold engine operation. No heat on the intake helps you get max power. If it is a street car that you drive a lot and you have the Offy intake, I would use the intake heat feature. (keep the heat riser valve operational)"
That is very good advice.
Quote:
I plan on using the Durta Duals. (rear manifold just cut and sealed off)
Another good idea!
Quote:
The factory setup has the exhaust and the intake gasketed and bolts to one other just below the carb. Does the Offenhauser set up this way?
Yes.
Quote:
Doesn't the Offenhauser intake have a coolant circuit for this adding of heat?
No.
Author:  AnotherSix [ Sat Aug 05, 2006 12:31 pm ]
Post subject: 
If you are buying used make sure it comes with the adapter for the current Holley / AFB base. I see alot of them for sale without it. It will be one less thing to mess with.
Author:  Bren67Cuda904 [ Wed Sep 13, 2006 11:40 am ]
Post subject: 
More clearity needed. Are all 5270 manifolds the same? I plan to bolt on a Holley 4 barrel. Do I need an adapter plate? My 904 is rod connected. Do I need this kit? Linkage Kit: Barracuda Quad Manifold w/ Automatic Trans (5270A)
[OFFY-5270-A] $93.84
Linkage Kit for Barracuda Quad Manifold with Cable Operated carb and Automatic Trans
Author:  LUCKY13 [ Wed Sep 13, 2006 12:45 pm ]
Post subject: 
Here you go.



http://www.merchantamerica.com/chevyhot ... duct=75240


You may want to call them if you buy to see what it comes with & needs


They also have that Kick down linkage kit for $70.00



Jess
Author:  Charrlie_S [ Wed Sep 13, 2006 12:48 pm ]
Post subject: 
I still have the Offie manifold, and also a Dutra dual exhaust manifold. Also just got a brand new linkage set, yesterday.
Author:  argentina-slantsixer [ Wed Sep 13, 2006 3:44 pm ]
Post subject: 
Quote:
I still have the Offie manifold, and also a Dutra dual exhaust manifold. Also just got a brand new linkage set, yesterday.
You mean for sale, Charlie? I'd be interested on the 4 bl mani
Author:  Charrlie_S [ Wed Sep 13, 2006 4:19 pm ]
Post subject: 
Quote:
Quote:
I still have the Offie manifold, and also a Dutra dual exhaust manifold. Also just got a brand new linkage set, yesterday.
You mean for sale, Charlie? I'd be interested on the 4 bl mani
Yes, intake manifold only, used, very good condition with the carb plate. $150 plus shipping. I have never shipped anything out of the US, so I will have to see what is involved.
Author:  argentina-slantsixer [ Wed Sep 13, 2006 6:24 pm ]
Post subject: 
Quote:
Quote:
Quote:
I still have the Offie manifold, and also a Dutra dual exhaust manifold. Also just got a brand new linkage set, yesterday.
You mean for sale, Charlie? I'd be interested on the 4 bl mani
Yes, intake manifold only, used, very good condition with the carb plate. $150 plus shipping. I have never shipped anything out of the US, so I will have to see what is involved.
Oh man! I've been looking for a used one of those forever! I'll take it if you're willing to ship to argentina. I'll send you a PM
Author:  rock [ Wed Sep 13, 2006 6:45 pm ]
Post subject:  with the offy, use the high rise adapter
BrenCuda,

With my Dutras and Offy intake I have used both spreadbore and squarebore 4bbls..it just takes adapters. In some previous posts Reed, I believe, suggested I try a 2" high spacer. I did. It's great. I am gonna add on another inch one day soon just to see what 3 inches does, but 2 is better than one is better than a mere plate adapter. More pull in lower gears and rpms.

The Offy is often used on Jeeps too, so look on ebay for Offenhauser manifold, jeep intake, etc. Usually run $150 to $250 depending on particular sale and goodies that come with the manifold.

rock
'64d100
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