Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > CJ Jeep Forum > CJ General Discussion Forum > How do you feel about the 304 V8?

Join Wrangler Forum Today


Thread: How do you feel about the 304 V8? Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
06-24-2009 01:11 PM
KicknJeep that's how my exhaust runs, in fender headers, straight pipes into cherry bombs and it sounds awsom
06-24-2009 01:05 PM
steamnsteel My two cents......I had a 74 cj5 that I switched from the 258 to the 304 and the gains in torque were well worth the swap. My brother put a 360 in his cj7, more horsepower than the 304. Those 304's are great for lugging and low speed operation IMO and I would love to still have my cj, headers and chery bombs made for a real nice and unique sound.

I do remember something about the valves would burn on the back cylinders if your carb. was slightly lean on the jets, I think this only happened if you ran alot of high rpm's. Can't remember for sure, been too long ago. Now to swap av8 into my rubi......
06-23-2009 12:00 PM
KicknJeep Phiily isn't that in Canada or something....
06-23-2009 11:00 AM
dooder
Quote:
Originally Posted by KicknJeep View Post
but with that being said I still want a 401 darn it
theres A 401 for sale in philly craigslist
06-23-2009 10:33 AM
KicknJeep my old 79 CJ5 had the 304 which when I had it rebuilt was bored 30 over and nothing else special and would smoke the rear tires (33" AT's). the last (79 CJ7) one I had 3 years ago had the Teamrush upgrade and tbi and will spin the 35" swampers. so not a bad little engine IMHO. but with that being said I still want a 401 darn it
06-22-2009 01:43 PM
dooder 304
The 304 had a displacement of 303.92 CID (4,980.3 cc) which produced 210 hp (157 kW) in 1970-71 and was built starting in 1970.[1] Later models produced less power from the factory, going down yearly. 1972-78 models were rated at 150 hp (112 kW). It was rated at 130 hp (97 kW) in 1979, the last year it was installed in passenger cars, and 125 hp (93 kW) in 1980-81, the last years it was used in Jeep vehicles.

stock early models were at 210hp and around 300ftlbs, later lost power probably for emmisions. dumping emmision controls on newer ones and adding early intakes and exhaust should get around that of early models. i would guess using edelbrock intake, headers, and a good 4 barrel should see near 250hp. some higher compression pistons, larger valves, and ignition might get near the 1 hp per cube mark.
06-22-2009 12:48 PM
jpdocdave you can get more out of it, but not a ton, especially for the money. putting an exhaust and intake on it are not gonna give you 100 hp. its still a cool motor, reliable and sounds cool. but don't expect to win any races with it.
06-22-2009 09:35 AM
dooder
Quote:
Originally Posted by jpdocdave View Post
really? 125 big ole horses, i think the 2.5 has about that.

The 304 used from '80-'81 in CJs, J-series pickups, and Wagoneers suffers in performance.
AMC 304 V8Bore x Stroke3.75" x 3.44"Displacement304(4.98L)Compression Ratio8.4:1Horsepower (net)125@3200Torque (net)220@2400Main Bearings5Valve ConfigurationOHVFuel2bbl
like i said, when fueled and exhausted correctly. we know the stock carbs are crap, the intakes are likely crap and the exhaust is likely very restrictive. that said a good carb and intake and a set of headers should release some of the "potential" hp. A near 5liter making 125 hp??? do you really think thats all that engine has to offer?
Not saying your wrong in stock vs stock but i was talking potential power.
06-22-2009 07:57 AM
jpdocdave
Quote:
Originally Posted by dooder View Post
I cant remember the bad old days when amc was around and 304's were on the street but regardless of that the 304 is still a v8 and has the potential for descent hp. I dont know the specs of it but unless there is a huge design flaw that engine should easily make alot more power when fueled and exhausted correctly over the straight six engine any day of the week.
really? 125 big ole horses, i think the 2.5 has about that.

The 304 used from '80-'81 in CJs, J-series pickups, and Wagoneers suffers in performance.
AMC 304 V8Bore x Stroke3.75" x 3.44"Displacement304(4.98L)Compression Ratio8.4:1Horsepower (net)125@3200Torque (net)220@2400Main Bearings5Valve ConfigurationOHVFuel2bbl
06-22-2009 06:26 AM
dooder I cant remember the bad old days when amc was around and 304's were on the street but regardless of that the 304 is still a v8 and has the potential for descent hp. I dont know the specs of it but unless there is a huge design flaw that engine should easily make alot more power when fueled and exhausted correctly over the straight six engine any day of the week.
06-18-2009 01:08 PM
Jeepzcb09 well i probubly wont get anyway i want more of a daily driver and im sure that one drives like a tank, thanks
06-18-2009 11:29 AM
jpdocdave ya, the 304 is a good engine, reliable. but old, less horsepower than the 258 straight six.
06-18-2009 09:26 AM
4Jeepn The engine is good... I would say I like the 258 more. However reading the spec's on the Jeep I would run from it.. 9" of lift and a fiberglass tub..scary...
06-18-2009 12:02 AM
Jeepzcb09
How do you feel about the 304 V8?

Ive seen( on craigslist) a 1978 cj5 with a 304 and a 3 speed on 38 S.S's, and a 9in lift. Fiberglass tub, looks pretty nice. Iv never drove a 304 or a 3 speed can u give me some ideas on how the ride will be, MPG, is it a good buy and any other info.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 11:11 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC