390 Intake maniflod
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New User
Joined: Jun 2007
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From: Littleton, Co
390 Intake maniflod
How do I go from a 2 barrel intake to a 4 if I dont have numbers for the engine except for the manufacture date. Do I use the intake numbers, also where is the best place for parts? Online or parts store. Autozone couldn't even get me a vented gas cap for a 53 Panel. Thanks
Senior User
Joined: Sep 2006
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From: Newbury Park Ca.
1st, get a crane if you're gonna use the cast iron intake. It is a bitch to lift off any iron FE intake, but damm near impossible to correctly install one, in the vehicle, or out, without using something to support the weight. Any of the mail order houses will sell you an aluminum 4 brl intake. Alot more money than the later model stuff, but available. I would caution you about the expected fuel mileage of the 4 brl, especially if that is the only thing you're changing. IMO, dial in the 2 brl, spend the money to get it right and you will be happier in the long run......aMP
Post Fiend
Joined: Mar 2004
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From: Union, Washington
Actually I don't understand all the whining about the weight of the FE iron manifolds. When I was young, we're talking under 45 here, I used to do them by myself all the time, both on and off. Besides just how often are you gonna swap the damn thing? As to the 4 barrel carb, as long as you don't get stupid with the carb size and keep having to listen to the secondaries open there will be a mileage improvement of 1 or 2 mpg. The smaller primaries will cause this. Junk yard is best for an FE iron manifold, one with an "S" on one of the front runners is your best bet for mileage boost along with your best performance increase. After market, try either Edelbrock or Summit. You have to know what you want anymore. If the computer won't tell them, the store morons haven't a clue anymore.
Ford Parts Specialist
Joined: Nov 2006
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From: Simi Valley, CA
Originally Posted by Bob Bru
How do I go from a 2 barrel intake to a 4 if I dont have numbers for the engine except for the manufacture date. Do I use the intake numbers, also where is the best place for parts? Online or parts store. Autozone couldn't even get me a vented gas cap for a 53 Panel. Thanks
Don't need engine numbers, I'd use a 390 4V intake manifold from a car from 1967/71, or a 1973/76 F100/350. The earlier 1958/66 intake manifolds use a larger thermostat, which can be hard to find, and thermostat housing (the same gasket is used for either housing, so all manifolds will fit 58/76). Otherwise the manifolds are essentially the same.
Same intake manifold gasket set is used for a 2 or 4 barrel, makes no difference.
C3AZ-9433-G .. Intake Manifold Gasket Set ~ Fits all FE: 332/352/360/390's 1958/76.
Last edited by NumberDummy; Jul 19, 2007 at 04:34 AM.
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Joined: Jun 2007
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From: Littleton, Co
Thanks Guys! As for the vehicle it's a 53 Panel that I'm restoring, so as for the gas, it's not a worry, It's only a weekender. Is it better to get an after market aluminum or a cast from the junk yard? Should I worry about a junk yard manifold being cracked or warped?
Post Fiend
Joined: Mar 2004
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From: Union, Washington
Originally Posted by Bob Bru
Thanks Guys! As for the vehicle it's a 53 Panel that I'm restoring, so as for the gas, it's not a worry, It's only a weekender. Is it better to get an after market aluminum or a cast from the junk yard? Should I worry about a junk yard manifold being cracked or warped?
Needsmorecoffee.
Joined: Oct 2004
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From: CT
Bob the one thing you want to keep in mind is the head to intake port match between the early 58-67 and 68 and later heads. Early heads used a larger port design than the latter. You can look between the center 2 spark plugs and see the heads casting number. This may or may not be accessable depending on the room you have in the engine compartment. In my Cougar it's next to impossible to see them with the thermactor tubes in the way. Post them if you can see the head numbers. While it's not a major performance issue in stockish builds it can cost you some flow. Most of the aftermarket intakes have smaller ports like the 68 and later oem intakes. These work well with the early heads also. It's when you have a early intake on 68 and later std heads you get some restriction.
G.
G.
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Post Fiend
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From: Union, Washington
Don't you mean 1966 as the 390GT motor appeared then with the s manifold and the smaller ports.
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Joined: Jun 2007
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From: Littleton, Co
Thanks Guys. I am looking to just put a bigger carb on and I realize that I need to replace the intake manifold. Do I need to worry about anything else? I realize that this is a not so easy task. The motor is a 390 (Manufacture date 5/10/72) The head casting #s are C8EA-H. and yes I am a novice in this rebuild field
Needsmorecoffee.
Joined: Oct 2004
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From: CT
Originally Posted by Bear 45/70
Don't you mean 1966 as the 390GT motor appeared then with the s manifold and the smaller ports.
Bob the aftermarket intakes will fit those heads nicely. Shop around for deals. I compare prices with ebay and all the vendors. I find some of the parts vendors charge more to buy on ebay then if you bought off their site. To cover the ebay fees I guess. So it pays to shop around.
G.
Cargo Master
Joined: Apr 2004
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From: Golden, CO
Hey Bob! I have a side-by pic of the early/late intake ports here: https://www.ford-trucks.com/user_gal...132958&width=2
You have the late heads/ports.
I wouldn't worry too much about iron intakes warping. Places like Pull-N-Save have a 30 day return policy. You gotta love the free market system!
For what is essentially a stock engine, in a heavy vehicle, a bigger carb may well be a disappointment. I haven't gone there yet, but everyone here says exhaust headers will make a big difference.
BTW, there will be a couple car shows the 28th and 29th up here in Golden. They close a few streets downtown so you don't get run over as you wander from car to car. LOL
You have the late heads/ports.
I wouldn't worry too much about iron intakes warping. Places like Pull-N-Save have a 30 day return policy. You gotta love the free market system!
For what is essentially a stock engine, in a heavy vehicle, a bigger carb may well be a disappointment. I haven't gone there yet, but everyone here says exhaust headers will make a big difference.
BTW, there will be a couple car shows the 28th and 29th up here in Golden. They close a few streets downtown so you don't get run over as you wander from car to car. LOL
Logistics Pro
Joined: Mar 2005
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From: tujunga, calif
Originally Posted by Redmanbob
Jim up in Chatsworth CA(user name not coming to me) coffee must be weal LOL He's sporting a 59-60 ? Panel and speaks highly of the 4bbl, headers, dual pipes upgrade