Opinions Wanted: Stroked 258 I6 vs. 283 - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep CJ Forum > Opinions Wanted: Stroked 258 I6 vs. 283

Savvy/Currie Aluminum Control ArmsRockridge 4WD IS Taking Zone Offroad Suspension Lift Kits ZONE 4.25" combo lift for TJ available at Rockridge4w

Reply
Unread 08-02-2010, 07:35 PM   #1
SlikRic
Muddin Maniac
 
SlikRic's Avatar
1983 CJ7 
 
Join Date: Jan 2008
Location: North Port, Florida
Posts: 3,114
Opinions Wanted: Stroked 258 I6 vs. 283

Ok, my current 83 has an Iron Duke mated to a (GM bolt pattern) T176/Dana 300 combo. My 80 (getting torn down for rebuild) has a 258 mated to the same (AMC bolt pattern) T176/Dana 300 combo. The Iron Duke just isn't going to cut it for my needs (I-75 driving 70/80 MPH) and some mild to medium trails. I looking for opinions from you guys who have a stroked 258 or a 283. I'm interested in the power, MPG, torque, etc! Which would you guys reccommend?

Thanks for your opinions
Rick

__________________
United States of America
Born: July 4, 1776
Died: Nov 4, 2008
SUICIDE
SlikRic is offline   Reply With Quote Quick reply to this message
Unread 08-02-2010, 07:56 PM   #2
bruteboy
Registered User
 
Join Date: May 2010
Location: british columbia ca
Posts: 484
if the only choice is between a stroked 258 or a 283,I would say stroked 258.
bruteboy is offline   Reply With Quote Quick reply to this message
Unread 08-02-2010, 08:25 PM   #3
jcal73
Web Wheeler
 
jcal73's Avatar
1979 CJ5 
 
Join Date: Nov 2007
Location: Alabama Roll Tide
Posts: 1,076
What are your gears? A stroked 258 will not live long at high RPM on highway.
The 283 will rev higher and live longer at those rpm.



Jeff
jcal73 is offline   Reply With Quote Quick reply to this message
Unread 08-02-2010, 08:25 PM   #4
SlikRic
Muddin Maniac
 
SlikRic's Avatar
1983 CJ7 
 
Join Date: Jan 2008
Location: North Port, Florida
Posts: 3,114
Forgot to ask about reliability and are you Carb'ed or FI'ed. Thanks again!
__________________
United States of America
Born: July 4, 1776
Died: Nov 4, 2008
SUICIDE
SlikRic is offline   Reply With Quote Quick reply to this message
Unread 08-02-2010, 11:26 PM   #5
Pacfanweb
Go Wolfpack
 
Pacfanweb's Avatar
1981 CJ7 
 
Join Date: Jan 2005
Location: Wake Forest, NC
Posts: 2,551
I'd go for the SBC. V-8 is going to beat that one, probably in both power and cost.
Plus, once it's in, you're set up to drop a bigger SBC in whenever the mood (or money) allows.

Look at the TRUE cost of making any power with a stroked 258. Those "crate" stroker 4.6's claim 260hp.

A 283 stock is already going to likely have that much, and even more if it's even mildly modified. It's going to bolt right up to your bell housing, too.

I'm just not a big fan of the stroked 258's.....to me, it's a lot of money for how much power you ultimately make. Even if you miraculously managed to have one make 300hp, (unlikely) you could kill that figure for less money with a small block.

Now, if you lived somewhere that it was illegal to swap in an SBC, I might change my tune, but otherwise, go for the V-8.
Pacfanweb is offline   Reply With Quote Quick reply to this message
Unread 08-02-2010, 11:32 PM   #6
SlikRic
Muddin Maniac
 
SlikRic's Avatar
1983 CJ7 
 
Join Date: Jan 2008
Location: North Port, Florida
Posts: 3,114
Quote:
Originally Posted by Pacfanweb View Post
I'd go for the SBC. V-8 is going to beat that one, probably in both power and cost.
Plus, once it's in, you're set up to drop a bigger SBC in whenever the mood (or money) allows.

Look at the TRUE cost of making any power with a stroked 258. Those "crate" stroker 4.6's claim 260hp.

A 283 stock is already going to likely have that much, and even more if it's even mildly modified. It's going to bolt right up to your bell housing, too.

I'm just not a big fan of the stroked 258's.....to me, it's a lot of money for how much power you ultimately make. Even if you miraculously managed to have one make 300hp, (unlikely) you could kill that figure for less money with a small block.

Now, if you lived somewhere that it was illegal to swap in an SBC, I might change my tune, but otherwise, go for the V-8.
Even though you are a Pac fan, thank for your input.
HEELS RULE
__________________
United States of America
Born: July 4, 1776
Died: Nov 4, 2008
SUICIDE
SlikRic is offline   Reply With Quote Quick reply to this message
Unread 08-03-2010, 12:34 AM   #7
jp360cj
Registered User
1977 CJ7 
 
Join Date: Oct 2007
Location: Greenville, North Carolina
Posts: 1,754
Quote:
Originally Posted by SlikRic View Post
HEELS RULE
As much much as I hate to say it, I have to agree with Pac fan. Best mod i've done to mine was the V8 swap. Especially since your transmission will bolt up. Only question is...any particular reason you're wanting to go with a 283?
__________________
77 CJ-7- AMC 360, Edelbrock cam, MC2100, Fenderwells, CJ T18/D20, Chevy D44/EB 9" rear, Trutrac f/r, 4.11, SOA, 1.25 lift shackles, 35x12.50 BFG KM2s, Shackle Reversal
jp360cj is offline   Reply With Quote Quick reply to this message
Unread 08-03-2010, 01:17 AM   #8
Comanche_
Registered User
1985  
 
Join Date: Sep 2007
Location: The not wet side,Washington
Posts: 1,301
I would go with the a bigger motor, Imo, the 283 is a good motor, but it's not a low down torque motor, it's small so it has to rev up to make much. IIrc, they are from the 50's/60's, so any that you find will not have valves and valve seats that will live long with modern unleaded.

I would look for a 350 or other larger SBC motor, unless you have or can get the 283 in good shape cheap.
__________________
Eppur si muove
Quote:
Originally Posted by Z0NAJEEP View Post
With more stupid comments? Two retards don't make a right.
Comanche_ is offline   Reply With Quote Quick reply to this message
Unread 08-03-2010, 07:04 AM   #9
Pathkiller
Registered User
1974 CJ5 
 
Join Date: Jan 2009
Location: Lorton, VA
Posts: 2,580
How do you stroke a 258? Or are you talking about a 4.0L-based stroker? I have a 4.6L stroker in my Scrambler and love it. The 283 Chevy is as good as any other SBC (why not a 350? the block is the same size, if you're going to swap why not go with bigger displacement??), but is a whole different animal than an inline 6. Not a torque motor at all. High reving little screamer than makes HP at high rpm. Not a good Jeep engine. And to whoever said above that a 283 makes 260hp stock, I laugh. Stock ratings were in the 160hp-185hp range.
Pathkiller is offline   Reply With Quote Quick reply to this message
Unread 08-03-2010, 08:17 AM   #10
gmakra
Registered User
1985 CJ7 
 
Join Date: Jun 2008
Location: Chicago area
Posts: 2,891
Here are my thoughts on this the small block is a good little engine on the other hand its a higher reving engine here are the specs for the 283.

Model Designation: 150, 210 & Bel Air (all engines available) Wheel base: 117-1/2 Valve Location: In head Bore and Stroke: 3.875 x 3.000 Piston displacement, Cubic Inches: 283 Compression ratio: 8.50 Maximum Brake Horsepower: w/2-barrel carb: 185 @ 4600 RPM; w/4-barrel carb: 230 @ 4800 RPM Maximum Torque Lbs.Ft. @ RPM: w/2-barrel carb: 275 @ 2400 RPM; w/4-barrel carb: 300 @ 3000 RPM Normal Oil Pressure Pounds: 35
Now have a 4.7 stroker in my 85 Jeep and for the most part I really like it. The only area that has given me any headaches are the fuel delivery I tried the Howell TBI setup and it just did not work well. The Howell TBI is somewhat programmable but it really is very limited. The major problem is the very unequal length of the intake runners, which cause's more fuel to be delivered to the shorter runners and less to the longer runners.

I over came this with a Weber Redline TBI system which works very well. But I think I will go to a Weber Redline MPI setup.

Horse power numbers are are over rated its torque that moves you down the road. And a stroker has a lot of torque. Here is a picture of my 4.7 with the Howell adapter.

And here is a friends 4.9 stroker that he built for Bonneville for his World Fastest Jeep Comanche it puts out over 400 HP and over 400 Ft Lbs of Torque it was tested at the Hesco Dyno so its not a theoretical build.

Now you can go either way and both have their advantages and disadvantages. Building a Stroker has a very " HIGH GEE WHIZ FACTOR" and you can go from mild to wild but its more of a old school hot rodder thing where you have to experiment to get that right combination to make it work. A SBC has all kinds of stuff off the shelf so it more an assembly type build.

And what ever you do dont buy a pre manufactured stroker every one of them is garbage. Mine started out as a Golen and lasted less than 5000 miles (poor assembly) My current version is 10,000 and still going strong and it will last a really long time.
jeep-001.jpg   001.jpg  
gmakra is offline   Reply With Quote Quick reply to this message
Unread 08-03-2010, 10:04 AM   #11
Pathkiller
Registered User
1974 CJ5 
 
Join Date: Jan 2009
Location: Lorton, VA
Posts: 2,580
Everyone quoting HP numbers on 283s needs to take a lesson on the difference between gross and net HP ratings. After 1971 all HP numbers are net ratings, which are 25-30% lower than gross ratings. So take your 185hp (gross) 283 and subtract 25% and it puts out a whopping 139hp (net). Even a stock 4.0L was 180hp (net). No comparison. Sure, the fuel injected high-zoot version of the 283 put out 283 hp (gross, only 212 net), but try finding one of those nowadays. Even a modestly built 4.XL stroker will put out 240hp (net) with ease, and up close to 300 lb/ft of torque. A stock 2bbl 283 only put out 275 lb/ft at 2,400rpm.

Here's a good discussion on the comparison between a 4.XL stroker and any small block V8. Jeep Strokers • Stroker Horsepower & Torque Numbers VS. Small Block V8's
Pathkiller is offline   Reply With Quote Quick reply to this message
Unread 08-03-2010, 11:10 AM   #12
1986cj
Registered User
1986 CJ7 
 
Join Date: Dec 2007
Location: Denver Colorado
Posts: 1,876
I vote for the SBC. You would have a great, dependable motor, with parts available on any parts house shelf, and the best assortment of aftermarket parts available for half the price of a good stroker.
1986cj is offline   Reply With Quote Quick reply to this message
Unread 08-03-2010, 12:05 PM   #13
swatson454
Web Wheeler
 
swatson454's Avatar
1983 CJ7 
 
Join Date: May 2009
Location: Dripping Springs, TX (soon)
Posts: 5,041
Strokers are all well and good but you can build a 400Hp 350 standing on your head.
__________________
Live in a way that those who know you but don't know God will come to know God because they know you.

Last edited by swatson454; 08-03-2010 at 12:55 PM..
swatson454 is offline   Reply With Quote Quick reply to this message
Unread 08-03-2010, 12:59 PM   #14
243
Registered User
1983 CJ7 
 
Join Date: Sep 2002
Posts: 3,282
I say go with the 283 and get it on the road and have fun; then, follow it up with a SBC 383 STROKER in your spare time and then your smile will really kiss your ears
__________________
You can't sit at the big boy table if you are gonna whine like a girl...M
243 is offline   Reply With Quote Quick reply to this message
Unread 08-03-2010, 01:06 PM   #15
Pathkiller
Registered User
1974 CJ5 
 
Join Date: Jan 2009
Location: Lorton, VA
Posts: 2,580
Quote:
Originally Posted by swatson454 View Post
Strokers are all well and good but you can build a 400Hp 350 standing on your head.
Which would be fine if the OP had asked about building 400hp 350's. He didn't, he specifically asked for pros and cons of an inline stroker vs. a 283.
Pathkiller is offline   Reply With Quote Quick reply to this message
Reply

Tags
chevy , engine swap , iron duke , sbc

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
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.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.