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Unread 10-23-2008, 07:04 PM   #1
79cj7stone
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304 with 6pack ???

i got a 304 that needs a rebuild this is wat i wanna put in it:
1. mild cam
2. intake for 3 2 barells
3. 3 2 barells ( not sure wat kind )
4. OTF headers
5. performance plugs and wires


how do you think it will work out for me any suggestions will help

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Unread 10-23-2008, 07:14 PM   #2
JonB-CJ7
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Does anyone make a intake like that? I've seen the dual high rise for AMC V-8s, but never a 6 pack. It would be interesting to see.

http://store.summitracing.com/largei...ofy-5919_w.jpg

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Last edited by JonB-CJ7; 10-24-2008 at 04:49 PM..
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Unread 10-23-2008, 07:30 PM   #3
79cj7stone
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if i hav my reasearch right the bolt pattern for a 304 is the same as a 360, 390, 401(not too sure bout the 401) so if i find one for that it should fit my 304
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Unread 10-23-2008, 08:06 PM   #4
80cj
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A single four barrel would be better. Why would you want a 6 pack?
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Unread 10-23-2008, 08:10 PM   #5
JonB-CJ7
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Its the pre-1971 401s that have a different bolt pattern.
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Unread 10-23-2008, 08:10 PM   #6
Indy
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Nothing like an underpowered v8 with an impossible to tune fuel system A good 4 barrel will do much better even though it doesn't look as cool.
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Unread 10-23-2008, 08:26 PM   #7
CJhollic
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Unless you just want the cool factor you are better off with a 4 barrel. If you want power the 360 would be a better choice,
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Unread 10-23-2008, 08:48 PM   #8
79cj7stone
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first of all not alot of ppl hav a 304 with a six pack
2. it gradually puts out fuel the further down the peddle goes
3. if it is tuned right it should run good
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Unread 10-23-2008, 09:37 PM   #9
h2ojeep
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On your new cam, mild I think is good personal preference, and I could consider a short duration on both intake and exhaust. That would give you more bottom end power. For not much $$ I would consider a roller timing chain and new set of gears with the ability to “degree” the cam and set it four degrees before zero. Most of these guys on the forum could probably give you some good advice on the cam. I agree with the single carb advice already given… I think that a good 4 BBL carb would give you lot less headache, save money, and still give bunch of power
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Unread 10-23-2008, 10:01 PM   #10
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Quote:
Originally Posted by 79cj7stone View Post
first of all not alot of ppl hav a 304 with a six pack
2. it gradually puts out fuel the further down the peddle goes
3. if it is tuned right it should run good
My guess is the reason not many people have a 304 with a six pack on it is because it doesn't run very well. A 304 is a small engine for 6 barrels. Just trying to be reasonable, not a wise a$$.
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Unread 10-24-2008, 08:53 AM   #11
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Unless your 3- 2 barrels are about 150 cfm rated, you will be running way to rich. You will be WAY over carbed for a 304.
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Unread 10-24-2008, 09:00 AM   #12
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A buddy of mine had triples on a 300CI straight 6 in a early mustang.....It was more of an experiment and ran like a raped ape, but ridiculous to tune. Having them on a Jeep would be a headache.....but I guess it isnt mine.

Personally, get to know your Jeep better, like what kind of Tcase you have and axles, etc... as your time & $ can be better spent.

My .02
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Unread 10-24-2008, 09:23 AM   #13
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We got a 292 Chevy I-6 into the 13 second range with 3 webbers back in the 60s (it wasn't streetable). Six packs were once a common OEM option on muscle cars but they almost always could run a quicker ET with a single 4 barrel on the same engine.
Listen to the above advice; go with a small 4 barrel for better performance and more driving enjoyment.

Enjoy!
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Unread 10-24-2008, 12:19 PM   #14
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Quote:
Originally Posted by 79cj7stone View Post
first of all not alot of ppl hav a 304 with a six pack
2. it gradually puts out fuel the further down the peddle goes
3. if it is tuned right it should run good
1. Have you found a 6-pack manifold? I think the people don't run them is because the manifold doesn't exist.

2. The same with any other carburetor.

3. A big IF.

On a slightly more serious note, a 304 hardly needs a 4 barrel to provide enough air, much less a 6 pack, unless you plan to run RPM's that are sure to blow the engine.
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Unread 10-24-2008, 08:04 PM   #15
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I can't get one carb to run decent off-road on one Jeep. I can't imagine the PIA it would be to get 3 working right, at the same time on a Jeep. I think I'll stick with FI.
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