View Full Version : 3x2 Edelbrock flathead intakes questions


mercjoe
11-18-2007, 03:15 PM
Ignorant question:

When did Edelbrock stoped making "SU 359" 3x2 intakes and for how many years were this produced ?

UPDATE:
Ok guys, got it for $190 and it looks new everywhere, it must have been used for just a few miles if ever used.

Anyone willing to trade for 349 ?!

Thanks
Diego

A Chopped Coupe
11-18-2007, 03:47 PM
There are two types of tripower Edelbrock manifolds, the early 42/48 and the late 49/53. I thought they stopped making them in the 70's.........????

A good one is around $250/350.........

A Chopped Coupe
11-18-2007, 04:00 PM
Forgot the picture of the late (49/53) SU.

dickster27
11-18-2007, 04:01 PM
I have a nice polished one I would let go for $275.

mercjoe
11-18-2007, 04:10 PM
In the 70's really ? So are these considered rare ? I guess not, price is more than fair.....

There are two types of tripower Edelbrock manifolds, the early 42/48 and the late 49/53. I thought they stopped making them in the 70's.........????
A good one is around $250/350.........

Flat Ernie
11-18-2007, 07:02 PM
I think that's high for a common intake like this - they aren't rare by any stretch. Call me cheap, but I wouldn't pay more than $175 for an SU349...

A Chopped Coupe
11-18-2007, 10:25 PM
Merjoe,

The 359 looks good, the $233 sounds like a good deal, if you don't want it I'll take it for that. As long as someone hasn't hog'd out the intake side then I'd go for it!


Dikster27,
Send me some pictures, I'd be interested if it's nice and the Edelbrock is still there. Is it a 59 or 49?

lonewolf
11-18-2007, 10:54 PM
i have that same intake on a 50 merc with progressive linkage and i love it, they have nice intake ports are not real small and restricted like other makes, flip it over and if it doesnt have the small holes for the exhaust gasses to go in buy it (some have the holes and some dont) i just sold that same intake on epay with the holes for 350

strombergs97
11-19-2007, 01:02 AM
Hey John, I have your hanging in my garage..You need it..
Duane..

Bruce Lancaster
11-19-2007, 11:51 AM
Edelbrock told me the triple is being re-introduced this year. Introduced early 1950's, I think, might be able to pinpoint a year from old catalogs. I know it's not in my oldest E catalog, which is probably '48-9.

Bruce Lancaster
11-19-2007, 11:52 AM
I think only change on new one is that the bracket slot up front will be stock Ford width so you can make your fan mount entirely from Ford parts and not the little cast fan bracket edelbrock once sold.

Digger_Dave
11-19-2007, 12:47 PM
Ignorant question:

When did Edelbrock stoped making "SU 359" 3x2 intakes intakes and for how many years were this produced ?

What is the estimated price for a good condition unit ?

Ive been offered the one bellow for $233

Thanks
D.

A couple more questions;

Were the "SU 359" manifolds like the one shown in mercjoe's picture - NO oil filler or road draft outlet at the front -
a COMMON PLENUM manifold? (can be operated with progressive linkage - 1 to three carbs.)

And did they come WITH or WITH OUT manifold heat?

banjorear
11-19-2007, 12:59 PM
And did they come WITH or WITH OUT manifold heat?[/QUOTE]


Yes, they are out there either way. Seems the ones with no heat are more readily available than the ones with.

Bruce Lancaster
11-19-2007, 01:07 PM
They have full length plenums, and can be run as singles or duals or progressive. Also, the Edelbrock is one of few that has room for Ford 94 carbs in place of Strombergs.

banjorear
11-19-2007, 01:08 PM
Correct, Bruce!

Been told that it is a great, effective 3X2 intake.

banjorear
11-19-2007, 01:10 PM
If you find one at the price, buy it & I'll pay you a $25 finders fee.

Even used Offys bring that price now.

Please note, I'm cheap too & wouldn't pay that for an Offy.

I think that's high for a common intake like this - they aren't rare by any stretch. Call me cheap, but I wouldn't pay more than $175 for an SU349...

Bruce Lancaster
11-19-2007, 01:16 PM
I just picked up a wounded and repaired, nameless (well, an "R" remains) Offy with cut 94's...I think any older triple is now getting valuable. Common, but demand is very high. I kinda like older repaired stuff..."Yep, I was passing over AJ's car, sideways and upside down, and the generator mount snapped off against his helmet..."

dickster27
11-19-2007, 01:54 PM
Merjoe,



Dikster27,
Send me some pictures, I'd be interested if it's nice and the Edelbrock is still there. Is it a 59 or 49?

It's a 359 and yes, the Edelbrock name is still on it. It is exactly like the first one pictured above except it's shiny.
Dick

mercjoe
11-19-2007, 07:49 PM
I also think price was fair. But listening to cheaps is a good thing !!!
I listened to "Flat Ernie" and finally closed deal for $195.Im happy :)

Im selling my flathead powered Merc but I have a 59A I'll be putting on some car some day.

Still no one answered when Edelbrock quit making these ones !!!

Thanks Guys
Diego


If you find one at the price, buy it & I'll pay you a $25 finders fee.

Even used Offys bring that price now.

Please note, I'm cheap too & wouldn't pay that for an Offy.

Flat Ernie
11-19-2007, 08:25 PM
I've sold a couple in the past few years for about $180 or so - probably had $125-150 in them. Don't have any currently...

I'm sure the market keeps moving up, but I'm a cheapskate for stuff like this until I just can't find 'em at a decent price, then I "inch" upward grudgingly & complain loudly about it! ;) :D

Bruce Lancaster
11-19-2007, 08:28 PM
I still have nightmares about all the great manifolds I couldn't afford back when they were $20, and the $30 Edelbrock slingshot...

mercjoe
11-21-2007, 03:28 PM
When was that ? this intakes were worth $30 ? I guess that was at least 20+ years ago.


I still have nightmares about all the great manifolds I couldn't afford back when they were $20, and the $30 Edelbrock slingshot...

Abomination
11-21-2007, 03:59 PM
You know they'll tell ya if you just call Edelbrock. 1-800-FUN-TEAM is their real number.

~Jason

Bored&Stroked
11-21-2007, 04:18 PM
When was that ? this intakes were worth $30 ? I guess that was at least 20+ years ago.

Had to be more than 20 years ago - at least out West. I was eyeing and buying flathead stuff ( all that I could find and/or afford ) in the mid 70's to mid 80's . . . in the Los Angeles area.

Most common manifolds were $50 - 75. The one I liked the best was a Navarro Race Model - 3 jug. It had 3 Stomberg 97's on it, linkage and cost me $75! That was a good deal . . . just moved all my flathead stuff to Ohio 4 years ago --> there it was, with the swap meet price sticker still on it!

I've always been partial to Navarro stuff . . . especially all the vintage products. I'm also glad that H&H bought Navarro out before he died -- they are the right type of outfit to carry his legacy on.

mercjoe
11-22-2007, 10:41 PM
Should this intake fit a 49-51 flatty ?

Bored&Stroked
11-23-2007, 09:28 AM
Should this intake fit a 49-51 flatty ?

It will fit, though you need to consider that is required for the crankcase ventilation system to work. A 49-53 engine had a front road draft tube - that was importatn to pull air from the valve area. If you just put this manifold on a 49-53 and do not consider what you need to do to insure that fresh air is pumped through the engine, then this is not good. Search the HAMB and FordBarn for the necessary modifications to run an early model manifold -- or to add a more modern PCV system.

Combustion gases and water vapor is a big problem --- fresh air is needed to clear the environment . . . so don't overlook the issue.

Dale

1952henry
11-23-2007, 09:35 AM
I still have nightmares about all the great manifolds I couldn't afford back when they were $20, and the $30 Edelbrock slingshot...

I saw the main part of a Edlebrock slingshot for sale on ebay. It was missing the top Y part. The seller advertised it not as a slingshot, but a four barrel manifold. In the description it was stated that it took some odd kind of big four barrel! I can't remember why I wasn't at the end of the auction. I wanted to snag it with hopes of finding the top part someday down the road. I can imagine more top parts survived over the years than the main parts.

klazurfer
11-23-2007, 10:15 AM
1948 : Nutn` SU ... 1949 : SU This`n that:

mercjoe
11-24-2007, 07:11 AM
Thanks Klaz, but still font get it. The 359 is for both 38/48 and 49/53
engines and the 349 is only for 49-53s ?!

Great pics
Thanks again.

Diego

1948 : Nutn` SU ... 1949 : SU This`n that:

Bored&Stroked
11-24-2007, 08:33 AM
Thanks Klaz, but still font get it. The 359 is for both 38/48 and 49/53
engines and the 349 is only for 49-53s ?!

Great pics
Thanks again.

Diego

You'll notice that the 349 has the front road-draft tube hole - whereas the 359 does not. Plenty of people have ran BOTH manifolds on 39-48 and 49-53 motors . . . in most cases not caring about the crankcase breathing issues. We just wanted to make sure that you know there are differences and there are steps to take care of the issues of running certain manifolds on certain year engines.

Hope this helps . . .

Dale

mercjoe
11-24-2007, 11:37 AM
Thanks B&S, I would appreciate some advice on how to take care of that issues if using this intake on my 50' Merc engine.

I noticed about the tube hole but have no clue about what is it for.


Diego


You'll notice that the 349 has the front road-draft tube hole - whereas the 359 does not. Plenty of people have ran BOTH manifolds on 39-48 and 49-53 motors . . . in most cases not caring about the crankcase breathing issues. We just wanted to make sure that you know there are differences and there are steps to take care of the issues of running certain manifolds on certain year engines.

Hope this helps . . .

Dale

mercjoe
11-24-2007, 06:38 PM
Thanks B&S, I would appreciate some advice on how to take care of that issues if using this intake on my 50' Merc engine.

I noticed about the tube hole but have no clue about what is it for.


Diego

chopperkid13
11-24-2007, 06:54 PM
my su349 for 49-51 flattys the 359 was for the earlier flattys without the vent system and also to this intake work on an older flathead you would have to drill counter-sinks for the alighnment pins.

http://img.photobucket.com/albums/v190/oldskoolhotrodr/su349.jpg

chopperkid13
11-24-2007, 06:55 PM
in other words this su349 would be the "proper" intake for your 49-51 motor

lonewolf
11-24-2007, 07:14 PM
merc jo do you kave a 349 or 359? i have a 359 on a 50 merc with a pcv valve setup from gollers hot rods on it. Its totaly hidden, if you have a 349 they make a pcv valve setup to go in one of the hole upfront on the intake. www.gollershotrods.com (http://www.gollershotrods.com) seemed like a great guy answered all my questions if you want me to take pics of my motor let me know

mercjoe
11-24-2007, 07:40 PM
I have a 359 I was planning on using on another flatty, but I wondered if I could use it on my 50' Merc instead. Still not clear why I shouldnt use it, I know.., the vent system, but this has to do just with my ignorance between the two engines.

Honestly, this vent thing is new to me.

Yes, post pics if you can !!

Thanks Wolf
Diego



merc jo do you kave a 349 or 359? i have a 359 on a 50 merc with a pcv valve setup from gollers hot rods on it. Its totaly hidden, if you have a 349 they make a pcv valve setup to go in one of the hole upfront on the intake. www.gollershotrods.com (http://www.gollershotrods.com) seemed like a great guy answered all my questions if you want me to take pics of my motor let me know

mercjoe
11-25-2007, 01:07 AM
So, Is lonewolf (http://www.jalopyjournal.com/forum/member.php?u=19156) right ? could I use the 359 that way on my later 50 flatty ?

Flat Ernie
11-25-2007, 01:41 AM
Yes.

You can use any intake on any engine. You will just have to sort out the engine breathing - well-documented either way.

mercjoe
11-25-2007, 07:04 PM
Now, changing the subject a little. I want to use just 2 carbs and one dummy for the looks. My Merc is a driver so I and dont wanna have tunning troubles..., which 2 of the three should I choose ?

Thanks
Diego

Flat Ernie
11-25-2007, 08:25 PM
Personally, I think tuning a 3x2 with progressive linkage is easier than tuning a 2x2 with straight linkage.

But if you only want to run two carbs, you should probably run the two outer carbs & blank off the center carb.

mercjoe
11-25-2007, 08:59 PM
Thanks Ernie,

I read somewhere, probably the HAMB that 3x2 setups were hard to tune for street use. if its not the case I'll go with the 3 carbs and a progressive linkage.

Any other input on this ?

Thanks
Diego



Personally, I think tuning a 3x2 with progressive linkage is easier than tuning a 2x2 with straight linkage.

But if you only want to run two carbs, you should probably run the two outer carbs & blank off the center carb.

Bored&Stroked
11-26-2007, 05:22 AM
Thanks Ernie,

I read somewhere, probably the HAMB that 3x2 setups were hard to tune for street use. if its not the case I'll go with the 3 carbs and a progressive linkage.

Any other input on this ?

Thanks
Diego

I ran a SU 359 on a 284 cube flathead on the street for a few years in high school -- with a progressive linkage. It was really pretty easy to tune, as long as you have some sort of "Unisyn" device to sync the outer two carbs. I ran it with Stromberg 97's as well as Holley 2110's. I ran a H&C dual coil setup with a Potvin 425 Eliminator cam . . . was a pretty fun flathead. I drove it to school and all over hell in Southern California in the 70's . . . was a reliable car and ran very well.

mercjoe
11-26-2007, 12:18 PM
How does a "Unisyn" device work ? were to buy it ?

I ran a SU 359 on a 284 cube flathead on the street for a few years in high school -- with a progressive linkage. It was really pretty easy to tune, as long as you have some sort of "Unisyn" device to sync the outer two carbs. I ran it with Stromberg 97's as well as Holley 2110's. I ran a H&C dual coil setup with a Potvin 425 Eliminator cam . . . was a pretty fun flathead. I drove it to school and all over hell in Southern California in the 70's . . . was a reliable car and ran very well.

mercjoe
11-26-2007, 01:35 PM
Another thing, Im leaving the engine all stock besides the intake. Isnt that an issue at tunning time ? no cam, no headers, etc.

D.


I ran a SU 359 on a 284 cube flathead on the street for a few years in high school -- with a progressive linkage. It was really pretty easy to tune, as long as you have some sort of "Unisyn" device to sync the outer two carbs. I ran it with Stromberg 97's as well as Holley 2110's. I ran a H&C dual coil setup with a Potvin 425 Eliminator cam . . . was a pretty fun flathead. I drove it to school and all over hell in Southern California in the 70's . . . was a reliable car and ran very well.

mercjoe
11-26-2007, 01:46 PM
Anyone willing to trade the 359 for a 349 ?

Bored&Stroked
11-26-2007, 03:27 PM
IMHO . . . you should consider a good 3/4 CAM, a good ignition and headers. If you don't, then you'll never take advantage of a 3-pot manifold. Consider an Isky Max 1 cam - you should like what it is all about.

Are you tearing the engine down at all . . . or just throwing a manifold on it?

banjorear
11-26-2007, 03:34 PM
IMHO . . . you should consider a good 3/4 CAM, a good ignition and headers. If you don't, then you'll never take advantage of a 3-pot manifold. Consider an Isky Max 1 cam - you should like what it is all about.

Are you tearing the engine down at all . . . or just throwing a manifold on it?

I gotta agree with B&S on this one.

Bruce Lancaster
11-26-2007, 04:31 PM
This ancient post:
http://www.jalopyjournal.com/forum/showthread.php?t=16426&showall=1

has some numbers, but I'm putting it up for the drag/dyno test on the '40 Merc; this is a bolt-on stuff test on a stock flathead in a heavy car... I wish they had continued and tested the results with a cam in there.

mercjoe
11-26-2007, 06:25 PM
Hi B&S,

The engine has been built already. Im throwing the manfold on.
Headers are not a big deal, changing the cam is.

How much an isky Max 1 is ?

I was thinking about pertronix ignition for the future.

Thanks
Diego


IMHO . . . you should consider a good 3/4 CAM, a good ignition and headers. If you don't, then you'll never take advantage of a 3-pot manifold. Consider an Isky Max 1 cam - you should like what it is all about.

Are you tearing the engine down at all . . . or just throwing a manifold on it?

Bruce Lancaster
11-26-2007, 06:33 PM
You need a different distributor, not a pertronix, on a '49-53. They don't have any problem at all making sparks or keeping points alive--they just can't make the sparks happen at the right time, especially with multiple carbs.

mercjoe
11-26-2007, 06:40 PM
Hi Bruce,

Which one would you reccomend ?

D.



You need a different distributor, not a pertronix, on a '49-53. They don't have any problem at all making sparks or keeping points alive--they just can't make the sparks happen at the right time, especially with multiple carbs.

Bruce Lancaster
11-26-2007, 06:55 PM
I use nothing but '42-48 type, so little help there...
Current Mallory has major quality issues, needs work before use...old Mallory is good but exoensive and hard to find...
MSD looks good, and likely best is a Chevy cut to fit because it is easy to tune the advance, vac and centrifugal, to you needs. Ron on Fordbarn converts them and has pictures of what needs to be done...'57-74 type Chevy.

mercjoe
11-26-2007, 07:44 PM
Any advice from HAMBERS 3x2 advice on ignitions ?

Thanks
D.


I use nothing but '42-48 type, so little help there...
Current Mallory has major quality issues, needs work before use...old Mallory is good but exoensive and hard to find...
MSD looks good, and likely best is a Chevy cut to fit because it is easy to tune the advance, vac and centrifugal, to you needs. Ron on Fordbarn converts them and has pictures of what needs to be done...'57-74 type Chevy.

Flat Ernie
11-26-2007, 10:08 PM
Like Bruce said - vintage Mallory, although MSD makes a distributor & you can convert Chrysler electronic or Chevy to work with the flathead (both require machining).

Try a search for "flathead ignition chrysler" - a few should pop up.

mercjoe
11-26-2007, 10:26 PM
There's a ready to run MSD distributor for later flatheads:

http://www.msdignition.com/dist_24.htm

Any feedback on this thing ?

Thanks
D.



Like Bruce said - vintage Mallory, although MSD makes a distributor & you can convert Chrysler electronic or Chevy to work with the flathead (both require machining).

Try a search for "flathead ignition chrysler" - a few should pop up.

mercjoe
11-27-2007, 12:28 PM
Anything to say about that MSD dist. ?

mercjoe
11-29-2007, 08:21 PM
What about the oil inlet if using the 359 on my later flatty ?

MrRoach Sir
10-05-2013, 12:17 PM
Just scored these yesterday. The Moon unit is a real find. My question is the inside of the manifolds are cast really rough. Would they benefit from smothing out or has anyone ever heard of them being cleaned up via flow bench?