Modified intake manifold for 300/4.9L engines... want 3 carbs?

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Modified intake manifold for 300/4.9L engines... want 3 carbs?

1986F150Six
Check this out! It appears to be made using the center section from 3 pre-EGR intake manifolds.

http://www.jalopyjournal.com/forum/attachments/1482-jpg.2772244/

With the phenolic spacer, the carburetor is clocked such that all 3 carbs can be connected in a more normal manner. [Heim joints?]

What say ye, Jonathan?
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

Gary Lewis
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I love it!  And Heim joints would make a neat linkage.  Cool!

What is the exhaust?  Can you tell?
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/soon-to-be ZF5/3.55's & EEC-V MAF/SEFI
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

1986F150Six
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

Gary Lewis
Administrator
Looks good.  But what's the firing order on the six?  The intake is set up as three two-cylinder engines, and the exhaust as two three-cylinder engines.
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/soon-to-be ZF5/3.55's & EEC-V MAF/SEFI
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

1986F150Six
1-5-3-6-2-4
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

Gary Lewis
Administrator
So either a 2 or a 3-cylinder approach has even firing.  Cool!
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/soon-to-be ZF5/3.55's & EEC-V MAF/SEFI
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

1986F150Six
"Little Red" would be so cool.....
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

Gary Lewis
Administrator
We could put it on in Sept.  
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/soon-to-be ZF5/3.55's & EEC-V MAF/SEFI
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

1986F150Six
Remember, I have to make it back!!!
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

Gary Lewis
Administrator
Worst case - run on the center carb.  It is still basically the same manifold that you have now.  
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/soon-to-be ZF5/3.55's & EEC-V MAF/SEFI
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

1986F150Six
Maybe Reamer could fabricate an aluminum box [plenum] with a removable top to mount on the lower portion of a F.I. intake manifold?

https://tse2.mm.bing.net/th?id=OIP.xSVzVRFwiJw46jgaBCgVeQEsDg&pid=Api

https://cimg5.ibsrv.net/gimg/www.ford-trucks.com-vbulletin/2000x1124/80-20141224_175359_611bc12fa949d63c38e3ab4de92e15208c5802c2.jpg

The flat solid top piece could be modified for a 2 barrel, (2) 2 barrels or (2) 1 barrel carburetors!!!



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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

1986F150Six
And another idea....

https://fordsix.com/download/file.php?id=2267&mode=view

I'll let it go, now!
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

Gary Lewis
Administrator
I'm not authorized to see the last one.  As for a box, those are problematic.  Some work and some don't.  I like the initial intake - 3 carbs.  

So, what carbs?  
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/soon-to-be ZF5/3.55's & EEC-V MAF/SEFI
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

85lebaront2
3 of the stock older Holley 1940s worked very well in the past. They are a nice dual pontoon float design that was a service carb. for replacing the Autolite 1100. We used to put a setup on the old integral manifold Falcon/Comet in-lines, used 3 stock carbs, center was primary and ends were progressive.
"Getting old is inevitable, growing up is optional"
Darth Vader 1986 F-350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator
Wife's 2011 Flex Limited
Daily Driver 1994 Taurus LX
Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

Whisler
I used to have a Mercury Monarch (same as Ford Granada) with the 250 ci (4.2L) six cylinder engine and 4 on the floor trans. (3 + OD). I always wanted to cut the manifold off at the head and construct a tubing set-up to use 3 side draft Harley Davidson carbs similar to what my Austin Healey 3000 used (it had 2 SU side drafts). The 3 Harley carbs calculated to have the right flow for the 4.2L six. Just a dream in my case as I didn't have the fabrication skills.
God Bless
Whisler

Frankenstein: 1989 F250 4X4, C-6, carbed '84 351W, Edelbrock 3781 manifold (2150 carb, EGR deleted), DS2 ignition, 3G alternator, JBA shorty headers, no cats, dual exhaust with H pipe.
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Re: Modified intake manifold for 300/4.9L engines... want 3 carbs?

Ford F834
Administrator
This post was updated on .
In reply to this post by 1986F150Six
1986F150Six wrote
Check this out! It appears to be made using the center section from 3 pre-EGR intake manifolds.

http://www.jalopyjournal.com/forum/attachments/1482-jpg.2772244/

With the phenolic spacer, the carburetor is clocked such that all 3 carbs can be connected in a more normal manner. [Heim joints?]

What say ye, Jonathan?


It looks to me like those are EGR manifolds with the hole filled in? Definitely has a flat lobe in that location next to the intake hole.

This looks like a fun build but I am still working at getting ~one carburetor to work right, let alone three!

We will see what happens after the diesel is running. I will probably start itching to warm up the straight six performance 😇
SHORT BED 4-DOOR DIESEL: 1986 F350 4x4 SRW under construction-- 7.3 IDIT R&D 64mm intercooled turbo 150cc IP stage 1 cam main girdle 13" Southbend clutch ZF-5 + DNE2 overdrive 4.10 axle gears hydroboost brakes

STRAIGHT SIX 4X4: 1981 F150 2wd to 4x4 conversion-- 300 I6 close ratio diesel T19, hydroboost brakes, Saginaw steering