4v carb
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New User
Joined: Aug 2003
Posts: 23
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From: Texas
4v carb
Is it possible to install a 4v carb on a stock intake manifold that has a 2v carb? Or should the question b is there a 2v or a 4v intake manafold?
69 ford f100 ranger 360
petronix 2 ignition
69 ford f100 ranger 360
petronix 2 ignition
Laughing Gas
Joined: Jul 1999
Posts: 1,048
Likes: 22
From: Lacey, WA
4v carb
Jakes69,
I do not know of any adapters for 2V intakes and 4bbl carbs though they may exist. Even if you find one I would recommend against using it. I don't see how this could come even close to being efficent.
If you are wanting to go with a 4bbl carb I would consider changing the manifold to a 4V type. Though it's a lot of heavy work, you can change to a stock cast iron 4V manifold for little money. The heavy one's have been known to sell at swap meets for under 30.00 bucks.
Also consider checking your local salvage yard. They should be about the same price but you will have to remove it and it can be a pain. The manifold is 80lbs!! Don't just look at truck motors as car's with FE's will work also. Most all manifolds used on FE's are inter-changable.
Good luck,
I do not know of any adapters for 2V intakes and 4bbl carbs though they may exist. Even if you find one I would recommend against using it. I don't see how this could come even close to being efficent.
If you are wanting to go with a 4bbl carb I would consider changing the manifold to a 4V type. Though it's a lot of heavy work, you can change to a stock cast iron 4V manifold for little money. The heavy one's have been known to sell at swap meets for under 30.00 bucks.
Also consider checking your local salvage yard. They should be about the same price but you will have to remove it and it can be a pain. The manifold is 80lbs!! Don't just look at truck motors as car's with FE's will work also. Most all manifolds used on FE's are inter-changable.
Good luck,
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New User
Joined: Aug 2003
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From: Texas
4v carb
Thanks y'all. I'm considering yanking the engine out this fall when the weather cools down [Texas heat] and rebuilding it. May even convert it from 360 to 390. Is there considerable diff between the two. Don't know hp or torque diff. Understand only differance between the two is stroke. But if I install a 4v. on a 360, what would be the horsepower and torque diff. be from the 4v 390? I only have specs on 2v 360.
Thanks
Jake69
Thanks
Jake69
Junior User
Joined: May 2003
Posts: 57
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4v carb
The ratings from Ford were:
360
215hp@4400
327ft@2400
390
255hp@4400
376ft/lbs@2600
It's doesn't indicate carburation. You can see that the 390's extra stroke gives it a pretty good advantage in stock form. You can also build 325hp with over 400ft/lbs of torque very easily with a 390.
360
215hp@4400
327ft@2400
390
255hp@4400
376ft/lbs@2600
It's doesn't indicate carburation. You can see that the 390's extra stroke gives it a pretty good advantage in stock form. You can also build 325hp with over 400ft/lbs of torque very easily with a 390.
Junior User
Joined: May 2003
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4v carb
I'm not as familar with intakes for truck applications. The Edelbrock performer RPM and a Holley 750 vacuum secondary carb seem to be the hot ticket for street driven 390's in cars. With proper shortblock and valve train preparation, these run well up to 6000rpm. Again, maybe not what your looking for.
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New User
Joined: Aug 2003
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From: Texas
4v carb
Yes I agree, the performer RPM would be the way to go based on popular opinion. It has a C6 tranny,Tag on differential says 313 although I never heard of that ratio.
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Senior User
Joined: Apr 2003
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From: Knoxville, TN
4v carb
The trucks were never available from Ford with 4V carburetion on an FE (at least 67-72) so those numbers would be 2V numbers.
The truck engines also have less compression that most Car motors.
You are apt to get all sorts of opinions but careful shopping should net you a good factory manifold and carburetor (Autolite 4100) for what the manifold alone would cost you aftermarket. Unless you are planning to put enough cam in it to spin it over 5000 or so I go with the factory stuff, and in my opinion it will make nearly as much if not the same power.
You might even score one of the Alum PI intakes.
Now, it you are going to do a big cam, definitely a Performer RPM and a 750 would be a good choice.
The truck engines also have less compression that most Car motors.
You are apt to get all sorts of opinions but careful shopping should net you a good factory manifold and carburetor (Autolite 4100) for what the manifold alone would cost you aftermarket. Unless you are planning to put enough cam in it to spin it over 5000 or so I go with the factory stuff, and in my opinion it will make nearly as much if not the same power.
You might even score one of the Alum PI intakes.
Now, it you are going to do a big cam, definitely a Performer RPM and a 750 would be a good choice.
Last edited by DuckRyder; Aug 30, 2003 at 12:45 PM.
Senior User
Joined: Apr 2003
Posts: 426
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From: Knoxville, TN
4v carb
We talked about his a bit in the "What do I have Thread" too, particularly there is information on the carburetors to look for and identing them.
There were any number of car 4V FEs and those intakes will work on your engine.
I would think the very best two would be the 428 CJ/SCJ and Police Interceptors (The PI is Alum) but plain old 390 GT stuff is not too uncommon and it looks like that is what I ended up with.
I can tell you this, I bought a performer 351 to convert an old Crown VIC to a 4V and the ports and design of it were not much different from the factory 2V manifold. In fact, they certify then as stock replacements for CARB so unless the weight savings is key, I would not spend the money on a Performer package type deal unless you cannot find very similar factory stuff much cheaper.
IMHO
There were any number of car 4V FEs and those intakes will work on your engine.
I would think the very best two would be the 428 CJ/SCJ and Police Interceptors (The PI is Alum) but plain old 390 GT stuff is not too uncommon and it looks like that is what I ended up with.
I can tell you this, I bought a performer 351 to convert an old Crown VIC to a 4V and the ports and design of it were not much different from the factory 2V manifold. In fact, they certify then as stock replacements for CARB so unless the weight savings is key, I would not spend the money on a Performer package type deal unless you cannot find very similar factory stuff much cheaper.
IMHO
Lead Driver
Joined: Apr 2001
Posts: 6,175
Likes: 21
From: Texas
4v carb
limited personal expeience, a 750 carb is a bit big for a mild-medium 390. Unless you get radical with teh cam and valve-train, consider a 600 carb.
Or, you may end up like me, upragding the motor to match the carb :-)
Or, you may end up like me, upragding the motor to match the carb :-)