Adding a 4 barrel to a 302
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Adding a 4 barrel to a 302
I have a 1980 vintage 302 V8 in a Ford F-150. I am thinking about replacing the 2 barrel with a 4 barrel. It has been a long time since I worked on an old car (15 years of fuel injection and computers that left me dropping it off at the local garage). So far my eye is on an Edelbrock 600 CFM. Anyone else have experience with this carb? Do I need another manifold? As a side note, I want to put on a vintage air cleaner for a late 60's early 70's 302 with the 4 barrel, any sources for reproductions on these or NOS?
More Turbo
Joined: Jul 2003
Posts: 566
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From: SC
If you want to run a four barrel carb, you need a four barrel intake. Used stock cast iron ones can be had cheap from folks upgrading to aftermarket aluminum ones. Which are really the best way to go.
I used to think of Carter carbs as "Dodge" and never messed with them for years. After Edelbrock bought the company I ended up with one and tried it on my wife's car. I liked it so much I bought another one for my F100. They run pretty good as is and can be tweaked a bit too. After that you just leave them alone, maybe spray the gunk off once a year or so. My wife's has been going strong with no problems for like six years now. I've never had a Holley be anything like that trouble free.
I recommend a 500 cfm though. The old Ford 4100 carb that flowed 480 cfm was universally held to be about a perfect match for a stock to mild 302 for years. 500 cfm is about on the money too.
Air cleaner I can't help with . "LMC truck" has a lot of OEM Ford stuff, you might check their website out.
I used to think of Carter carbs as "Dodge" and never messed with them for years. After Edelbrock bought the company I ended up with one and tried it on my wife's car. I liked it so much I bought another one for my F100. They run pretty good as is and can be tweaked a bit too. After that you just leave them alone, maybe spray the gunk off once a year or so. My wife's has been going strong with no problems for like six years now. I've never had a Holley be anything like that trouble free.
I recommend a 500 cfm though. The old Ford 4100 carb that flowed 480 cfm was universally held to be about a perfect match for a stock to mild 302 for years. 500 cfm is about on the money too.
Air cleaner I can't help with . "LMC truck" has a lot of OEM Ford stuff, you might check their website out.
Last edited by GypsyR; Sep 15, 2010 at 02:21 PM. Reason: big typos
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Joined: Apr 2004
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When you fiddle with this set up, watch out for your evap system connections. Hooking them back up to work as per the OEM set up is best. Having to reroute and remake the vent is a PITA. Leaving them dangling is an invitation to a fire.
Posting Guru
Joined: Mar 2010
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From: northern va
i have a 600cfm edelbrock 1405 and have had it for about 12 years without any problems and had it with a performer intake which made a huge bump in power you could feel from the driver seat, BUT i also put them on a worn 100k+ motor and it blew up after about 6 months. dropped a valve when showing my brother how fast it would go from 60-80. hahahah it made it to around 75 and BOOOOOOM. so point being if a high mile motor be carfull not to kill it.
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Joined: Aug 2010
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i just put a performer rpm intake and a holley carb...not a double pumper but a single feed vacuum secondary...and it's a beast....it sounds better even....before it sounded like i had mufflers on it...now i can hear the cherry bombs...
Lead Driver
Joined: Aug 2003
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From: Boulder Creek, Ca
Not an authority, wonder if the 302 requires upgrading the camming with the 2bbl to 4bbl swap. 
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