258 exhaust manifolds - 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 09-07-2001, 12:17 PM
**DONOTDELETE**
Guest
 
Posts: n/a
258 exhaust manifolds

I've got a 77CJ7 with 258 six. The exhaust manifold is cracked in no less than 3 places. There is an 87 258 manifold in the paper for sale, is it interchangable? I know the 258 changed some in '80, what fits what?
thanks

Gary

Sponsored Links
Advertisement
 
post #2 of (permalink) Old 09-07-2001, 05:32 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: 258 exhaust manifolds

I don't know for sure but I would amagine that yours doesn't have the bung for the O2 sensor but the '87 will. Not a problem, just screw a bolt in the hole. The only other thing might be the tube for the pulse air. If you have either of these, the '87 should fit no problem and if not, it's easy fixes.


'88 Sahara, 4.2 that runs. The rest is getting there![img]/wwwthreads_images/icons/blush.gif[/img]
post #3 of (permalink) Old 09-08-2001, 10:20 AM
brendan
Guest
 
Posts: n/a
Re: 258 exhaust manifolds

I'm 90% sure you're stuck with the pre-80 manifolds. The older ones have the flange for the header pipe centered in the manifold, facing straight down, while the newer ones have thye flange more toward the rear of the block, and I think angled slightly toward the rear also.

In addition to the o2 sensor bung, there is the egr pipe that runs back up to the intake manifold on the 80+ models.

Brendan

Proud owner of the world's best running Carter BBD
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










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