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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

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Old 08-16-2010, 07:49 AM
Mercmeister Mercmeister is offline
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352 FE "S-Code" 4-BBL Intake Manifold

Hi -

I have an opportunity to buy a 4-barrel "S-Code" cast iron intake manifold for my 1966 Ford F100 that has the stock 352 V-8 engine with 2-barrel carb. From what I've researched, it sounds like the 4-barrel intake will perform slightly better and get better mpg than the stock setup. Is switching to a 4-barrel setup worthwhile? Also, how much is an "S-Code" intake worth?

Thanks!
Dan M.

1966 Ford F100 (x2)
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Old 08-16-2010, 09:49 AM
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Depends on how much they are asking?

I moved to a 4-barrel. In fact, I would try and find an aluminum intake manifold. I picked one up with a Carter carb with an electric choke on it at a swap meet for $200. The rebuild kit on the carb only cost $15. Those cast iron intakes are sooo heavy. It practically takes a cherry picker just to lift it off the block (haha).
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Old 08-16-2010, 10:49 AM
66shortbed 66shortbed is offline
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your mileage may improve if you stay out of the gas pedal. you're basically just running a 2 bbl until the secondaries open. my gas mileage went dwon when i switched to a 4 bbl but part of the reason i made the switch is because the truck was too slow for my taste.
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Old 08-16-2010, 11:04 AM
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Question 352 "S Code" 4-BBL Intake Manifold

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Originally Posted by Mercmeister View Post
I have an opportunity to buy a 4-barrel "S-Code" cast iron intake manifold for my 1966 Ford F100 that has the stock 352 V-8 engine with 2-barrel carb.
There's no such thing as an S code 352 4V manifold.

S is the VIN engine code for 1966/69 390 4V Passenger Cars.

No 352 came from the factory after 1964 w/a 4V, all were 2V's.

The manifold will fit, I had one on my 1965 F100, but it's heavy, weighs around 90 lbs. and you will also need a 4V carburetor and linkage.
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Old 08-16-2010, 12:24 PM
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I was disappointed when I added a 4 barrel to my truck. When I rebuilt the engine and specked it towards using a 4 barrel it performed better.

While our resident parts number guru claims no knowledge, some of us unlearned know the street lingo, and can provide photos to show that we can relate.


4 barrel intake known as S, recognized on the front runner.
Click the image to open in full size.



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Old 08-16-2010, 12:52 PM
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Quote:
specked it towards using a 4 barrel it performed better
jowilker: I'd be interested to know what you did specifically. I'm in the middle of rebuilding my 352.
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Old 08-16-2010, 01:01 PM
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Quote:
Originally Posted by jowilker View Post
While our resident parts number guru claims no knowledge, some of us unlearned know the street lingo, and can provide photos to show that we can relate.
Click the image to open in full size.
I do know this, John.

1966/69 390 4V Passenger Car Intake Manifold. 1965 is different, as the thermostat is larger in diameter, has a C5AE casting number prefix. 1958/64 has the provision for the oil fill tube.
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Old 08-16-2010, 02:30 PM
Mercmeister Mercmeister is offline
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Thanks Guys! It is my understanding that there never was a factory 4-bbl intake for a 352. The 4-bbl intake I'm looking at supposedly came off of a 390 passenger car like Bill suggests. I still would like to know what the stock cast iron "S-code" 4-bbl intake is really worth. Is there any performance difference between an "S-code" 4-bbl intake and a "non-S-code" 4-bbl intake?

Thanks,
Dan M.
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Old 08-16-2010, 02:32 PM
Mercmeister Mercmeister is offline
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Was the aluminum intake an Edelbrock "Performer" model or something else?

Thanks,
Dan M.
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Old 08-16-2010, 02:48 PM
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The aluminum intake was an edelbrock, but not sure about performer. It is not a polished aluminum.
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Old 08-16-2010, 04:04 PM
66shortbed 66shortbed is offline
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i did a lot of research on this when i built my 390. in terms of performance, i dont think they are worth anything more than any other fe manifold. i put 4bbl fe manifolds out by the dumspter for the scrap guys to take i dont know the numbers anymore but i recall the flow from a 60's car intake is about the same as a 70's truck intake which is about the same as an S-code intake. If anything, the early 60s manifolds could be better than the later s-code one??.
I owned a Z code 63 galaxie, and have seen my share of s-code mustangs... visually speaking the runners and everything appear very similar, and similar tolater 4bbl truck intakes. The performer and/or performer rpm flow better and wiegh less than half the stock 4bbl intake. a mustang guy doing a concorse restoration will probabaly pay a pretty penny for a year correct s code intake. but if you are just buying one for your 352, save yourself some cash and pull one off a truck in the boneyard. or if you are looking for performance, get an aftermarket aluminum one (you can find them used from time to time)
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Old 08-16-2010, 05:57 PM
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Quote:
Originally Posted by hwcasey12 View Post
jowilker: I'd be interested to know what you did specifically. I'm in the middle of rebuilding my 352.
Basically a performer setup, maybe the guys in the FE forum would give you a better parts list from todays parts.



Quote:
Originally Posted by Mercmeister View Post
Thanks Guys! It is my understanding that there never was a factory 4-bbl intake for a 352. The 4-bbl intake I'm looking at supposedly came off of a 390 passenger car like Bill suggests. I still would like to know what the stock cast iron "S-code" 4-bbl intake is really worth. Is there any performance difference between an "S-code" 4-bbl intake and a "non-S-code" 4-bbl intake?

Thanks,
Dan M.
Dan, Yes it is. Tis my understanding that the Edelbrock Performer is modeled after the S intake. There may be some others equal or better in 2010. I hear blue thunder a lot on the FE forum.

Guys are paying more than I will, but I'd range the intake price at $50-150.00, much over and I'd look at alum. If you are building a drag truck every ounce off is good, for a daily driver what's another 50 pounds in the real world.

Quote:
Originally Posted by NumberDummy View Post
I do know this, John.


1966/69 390 4V Passenger Car Intake Manifold. 1965 is different, as the thermostat is larger in diameter, has a C5AE casting number prefix. 1958/64 has the provision for the oil fill tube.
Bill I know that you do, the OP asked about using a S intake on a 352, not from a 352. The S will fit most all of the FE engines so why drag all that ca ca up. I don't see any value to his question. I believe he has a line on one at a good price and wants to run it on his truck. A Yes or a big hell yes will work. IMHO




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Old 10-10-2010, 09:14 PM
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good info on the intake. I pulled the oil bath filter off today and found a C3AE 9425B 4v. I'm not sure what it came from but I found a 4v holley from a 85 van at the bone yard that bolts up and it had gas in it. I dumped out the gas and brought it home.
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Old 10-11-2010, 08:45 AM
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I can't quote you numbers but I have been around these FE parts for years and if you are looking for the "performance" cast iron FE intake look at the tallness of the runners. The #1 port on a, lets say, Thunderbird intake actually has to raise up to meet the port on the head. This lowers the runners. These intakes were made that way to allow for hood clearance for the carb and air cleaner, I assume. On the performance intake where they didn't care about clearance the whole set of runners is higher, if you look at the #1 port and it dosen't dip, for my money it's a better intake. "S Code" or not. As far as the weight issue, for me the main drawback it changing it. I do use the cherry picker on the cast iron ones.
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Old 10-11-2010, 05:01 PM
BarnieTrk BarnieTrk is offline
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Dan M.,
What is your expected outcome?

If your F100, '66 stock 352 still has the same 40+ year old camshaft in it, then I doubt a 'S' manifold or even an aluminum Edelbrock manifold would give you much of a seat-of-the-pants performance difference.

Recall what John said,

Quote:
Originally Posted by jowilker View Post
I was disappointed when I added a 4 barrel to my truck. When I rebuilt the engine and specked it towards using a 4 barrel it performed better. John
ONLY AFTER John freshened his engine and installed a new camshaft designed to be run in combination with a 4-barrel, THEN he noticed the performance difference.

So, unless you plan to freshen your engine and quite likely move up to a "performance" camshaft profile sometime in the near future, the manifold/carb swap won't do much for ya now.

BarnieTrk


P.S.
If an engine still has good compression at all cylinders, I have found that by just putting an EXCELLENT QUALITY tune up on the stock engine ( by a quality tune up I mean using all new Autolite/Motorcraft-quality stuff -- sparkplugs (properly gapped), sparkplug & coil wires, distributor cap, rotor, points (properly gapped), fuel filter, carb rebuild kit, air cleaner, check/adjust the rocker arm clearances, check the output or replace the ignition coil) you can make a MAJOR improvement in the performance department. If the engine is tired with poor compression, then changing to a 4 barrel intake and carb WON'T make it a hot rod.
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Old 10-11-2010, 05:01 PM
 
 
 
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