Iron Duke 4 cylinder? - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 06-07-2002, 08:16 AM
**DONOTDELETE**
Guest
 
Posts: n/a
Iron Duke 4 cylinder?

Anybody know anything about the Iron Duke? Is it really as rare as Ive been told? Is it as good a engine as Ive been told? Are they worth anything if I want to sell it? Thanks.
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 06-07-2002, 08:26 AM
Old Hand
 
Join Date: Feb 2000
Location: Western New York
Posts: 839
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Iron Duke 4 cylinder?

not rare....good but underpowered.
lindy80cj7 is offline  
post #3 of (permalink) Old 06-07-2002, 04:21 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Iron Duke 4 cylinder?

My Jeep has an Iron Duke in it, I've come to like it works well off road the only thing I don't like about it is on the open high way when you come to a long grade it's hard to keep up your speed.But it is very dependable.
Sponsored Links
Advertisement
 
post #4 of (permalink) Old 06-07-2002, 04:24 PM
Enthusiast
 
Join Date: Jun 2001
Location: South Carolina
Posts: 319
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Iron Duke 4 cylinder?

What years did they use the Iron duke?
riksnacjnow is offline  
post #5 of (permalink) Old 06-07-2002, 05:36 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Iron Duke 4 cylinder?

They were only used from 80 to 83.
post #6 of (permalink) Old 06-07-2002, 08:46 PM
Enthusiast
 
Join Date: Jan 2002
Location: NW Wisconsin
Posts: 333
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Iron Duke 4 cylinder?

I have one in my 82 cj7. I will put a 350 in as soon as I can. With 31's and 3.54's with the 5spd it pings when you let out the clutch in 1st gear. I need more power for the 33's that I want.
MUDITUP4x4 is offline  
post #7 of (permalink) Old 06-07-2002, 09:03 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: Iron Duke 4 cylinder?

I have it in my 80 CJ-7. Great motor, very dependable and reliable. Makes good power with the right gearing for climbing, and on the highway it will take me up to 70-75mph until i hit a slight hill then its down to about 45.
post #8 of (permalink) Old 06-09-2002, 08:17 AM
I Do This For The Glory
 
JEEPN's Avatar
 
Join Date: Dec 1999
Location: Nobleboro, Maine
Posts: 7,958
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Iron Duke 4 cylinder?

Yep, great little motor. I have 3 of them here, but they are a little underpowered for large tires. I like them because they will literally lug to 300 rpm's and recover easily, which is amazing.
JEEPN is offline  
post #9 of (permalink) Old 06-10-2002, 08:02 AM
Addict
 
Join Date: Apr 2001
Location: Rockford MI
Posts: 521
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: Iron Duke 4 cylinder?

The original 153 c.i. Chevrolet Iron Duke was designed for and used as OE in the Nova during early 60s. This is the Iron Duke that has kinda like a cult following and is more rare.
The 151c.i. Iron Duke that was used in Jeeps was designed and built by PMD (early 70s). Intended to be 'economy' engine... i.e. durable, fuel efficient, easy to maintain, withstand neglect, etc. It is an Iron Duke only by name, it shares no parts with the original Iron Duke built by Chevrolet.
Added Value - the PMD Iron Duke engines were also used in many RWD GM cars and trucks from mid 70s to mid 80s so parts are available and donors are plenty and TBI is (almost) a bolt on upgrade and the BH pattern is exact same as SBC. Note: FWD version of the Iron Duke has changed BH pattern but I think internal parts will swap and that it is possible to use heads from these engines to add port injection to your Jeep Iron Duke. Performance upgrades and hop-ups are available, like the Pontiac Super Duty. However, most of these favor high RPM HP (speed).
There was some discussion, re the Jeep Iron Duke, on this BBS several months ago. You could also search the net for "Iron Duke" or "Pontiac Iron Duke" or "Nova" or "Pontiac Super Duty". Seems like to me that tons-o-information could be found that way... if you are interested.
Probably aren't worth much... doesn't seem to be much demand for durable, low HP engines. I got one from a 48k mile '80 CJ-5 with a SR-4 and a D300 attached - $50.
trailisman is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups 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 email address for yourself.

Email Address:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome