flexible 4.0 header - 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 02-17-2002, 02:55 PM
Posts: n/a
flexible 4.0 header

Is there a real difference in strength between the solid 4.0 headers and the ones that have the flexible pipe at the 1+6 cyls? I am looking at both and am wondering if this was a factory redesign or an aftermarket part. I am assuming that the flexible one is less prone to cracking. Thanks, brendan

Proud owner of the world's best running Carter BBD
Sponsored Links
post #2 of (permalink) Old 02-17-2002, 06:22 PM
Can't Get Enough
Join Date: Sep 1999
Location: Cotopaxi, Colorado
Posts: 1,036
Thanks: 0
Thanked 0 Times in 0 Posts
Re: flexible 4.0 header

The ones with the flexible tubes between 1 and 6 cylinders is a Mopar redesign. I have changed many of the older ones with the new style. I havn't changed any of the new type yet. Does this help? p.s. This is one of my favorite jobs. I can change one on a TJ in under 1 hour. The trick to re-assenbling it is to place 4 of the lower intake manifold bolts in finger tight, then snake the intake manifold over the studs. This makes starting the hard to reach bolts easy.

dorfs is offline  
post #3 of (permalink) Old 02-18-2002, 04:06 PM
Posts: n/a
Re: flexible 4.0 header

Thanks for the info and the tip. I am looking at buying one, but they say it is a copy or clone of the mopar. something like that. Have you ever heard of a cracked flexible header? maybe you've never had to replace one because they don't crack.

how many hours do they pay you for replacing one?


Proud owner of the world's best running Carter BBD
Sponsored Links

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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