Quick question on header install

Reply Subscribe

Thread Tools

Search this Thread

Sep 16, 2011 | 07:26 AM

#16

Donnie_K

CF Veteran

Joined: Jun 2009

Posts: 2,173

Likes: 0

From: Columbus, Ohio

Year: 1997

Model: Cherokee

Engine: 4.0, comp cam, 99 intake, apn header, neon injectors, Thunderbolt 2.5" High Flow Cat

Quote:

Originally Posted by K-SKI

can i put a 91 and up header on a 90 and lower i know the egr stuff but will they fit
my egr stuff is all taken off anyway is why i want to know that and i have a huge crack in the header

sorry to hijack

You would also have to do an HO head. The ports on the renix heads are different. As well as converting it over to accept the right sensors, which isn't very hard.

Sep 16, 2011 | 07:31 AM

#17

Donnie_K

CF Veteran

Joined: Jun 2009

Posts: 2,173

Likes: 0

From: Columbus, Ohio

Year: 1997

Model: Cherokee

Engine: 4.0, comp cam, 99 intake, apn header, neon injectors, Thunderbolt 2.5" High Flow Cat

Quote:

Originally Posted by UsmclovesXJ

Is that issue only with apn

Haven't tried it with any other headers, and it works fine with the older manifolds. The clearancing though really wasn't all that hard.

Sep 16, 2011 | 07:44 AM

#18

UsmclovesXJ

::Regional Moderator::

Joined: Aug 2011

Posts: 4,742

Likes: 10

From: Jacksonville, NC

Year: 1993

Model: Cherokee

Engine: I6 4.0L HO

Right so I'm going to try to. My header swap some time soon for my school project got put in 15 hours of work on my engine

Sep 18, 2011 | 02:52 AM

#19

WantACherokee

Thread Starter

Seasoned Member

Joined: Oct 2009

Posts: 414

Likes: 0

From: Portland, Oregon

Year: 1991

Model: Cherokee

Engine: 4.0L

Got it all finished... all in all not too bad. One of the bolts is near impossible to get in with both the header and intake in place, so I recommend getting all the lower bolts threaded in slightly and then dropping the intake down onto them. I took some pics to explain so I'll elaborate when I can upload them