Headers..again..

[andromeda2015]

Ive searched throughout all the posts and have yet to find an answer to my quesiton so here we go. Where is a good place (online) to order a decent header for a 89' 4.0L ? Most places I found had headers only for 91 and up Cherokee's. Also has anybody used Hedman Headers before? If possible, anywhere have Borla headers for under $350?

[Dr. Dyno]

If you want a long lasting header, the Borla is the one to go for. You might find the best pricing at Summit Racing.

[h.curtis]

I bought my Borla header from Summit for about $429 or something like that. It was here the next day. There may be cheaper ones there, but Borla was in line with most.

Curt

[Rev Den]

Go Borla.....or stay home.

Rev

[lesslimited]

Truckperformance.com had the best price on Borla for my app. 3years ago at $335 total.

[Dr. Dyno]

Originally posted by lesslimited92
Truckperformance.com had the best price on Borla for my app. 3years ago at $335 total.

Unfortunately their price has increased to $434.

http://www.truckperformance.com/products/?searchtype=56d&sortorder=AA&urlsubcategory=Exhaust&productcategory=Headers&sf1=JEEP&sf2=1989&sf3=Cherokee&sf4=4.0L

[hjeepxj]

anyone tried banks yet?

[Dr. Dyno]

Banks only make a header for the 4.0 HO. The only other alternative to the Borla header is the Pacesetter, and that's not exactly reknowned for its high quality. Its only good point is that it's cheap.

[lesslimited]

Originally posted by Dr. Dyno
[B]Unfortunately their price has increased to $434.

Wow! I'm sure I had some kind of sale price, but that's still some serious inflation:eek:

[hjeepxj]

Originally posted by Dr. Dyno
Banks only make a header for the 4.0 HO. The only other alternative to the Borla header is the Pacesetter, and that's not exactly reknowned for its high quality. Its only good point is that it's cheap.

yeah, you HO guys have all the header companies, thorley, hedman, hooker?, and banks

:D

[CW]

the headers for the HO engines will work on our RENIX heads with no problems. You just have to get rid of the EGR setup to use them. This has performance gains by itself because you are not pumping hot gas into your intake. It will effect your emmisions though. I just swapped a HO header onto mine, it is more of a header style exhaust manifold and it only cost me $12. You only stand to gain 3 to 4hp from the header. You could install a cam and port and polish your head for less than the $400 of a header.

[hjeepxj]

Originally posted by CW.
the headers for the HO engines will work on our RENIX heads with no problems. You just have to get rid of the EGR setup to use them. This has performance gains by itself because you are not pumping hot gas into your intake. It will effect your emmisions though. I just swapped a HO header onto mine, it is more of a header style exhaust manifold and it only cost me $12. You only stand to gain 3 to 4hp from the header. You could install a cam and port and polish your head for less than the $400 of a header.

sooo you just put a HO manifold on your non HO?

What is different on the egr setup on the hos? (never really looked)

[andromeda2015]

on the truck performance site it lists the header as for "manual: transmission".. does this matter since I have an automatic transmission? any difference?

[GSequoia]

Originally posted by hjeepxj
What is different on the egr setup on the hos? (never really looked)

The newer '91+ systems do not have an EGR, so by getting rid of it he meant getting rid of it! Keep in mind that if you're in a smog inspection place you'll want to keep the old manifold and put it on whenever smog time comes, they'll notice a missing EGR!

Also, for what it's worth, doing that is illegal, tampering with emmissions control systems is a no-no, just letting you know. :)

Sequoia

[PNWXJ]

The Borla manual tranny header will fit as I have one in mine. Mine is an automatic. The notes say due to shift linkage interferance but that isnt a prob inless yours has column shift.

Check 4wheelparts or Summit or also www.4wd.com...

I bought mine from 4wheel parts a year ago and it was $377 tax included!(8.8%) I just saw one in the 4wd catalog for $389 so I am sure there is a better price out there.

Tim

[8Mud]

Just an oppinion, it´s been said, by more knowedgable people than me, that the stock early 4.0 header is a pretty good header. Most of the power gains, by using an improved header, will be in the upper RPM range, my 4.0 will do double, most states speed limit now. Who needs it.
I did notice, while seaching the OEM warehouse for an exhaust manifold for my 87, that all 4.0 exhaust manifolds arn´t created equal. I guess they are produced at different factories or from different vendors. The wall thickness on some, was almost double that of others. In my mind thicker equals fewer cracks, the bain of early 4.0 exhaust manifilds.

[KarmirXJ]

Originally posted by Rev Den
Go Borla.....or stay home.

Rev


rev, Borlas are known to crack, though I havnt had this problem personally (I dont own borla) there are multi-pull :D people here on this board, JU and even POR that have had cracked borlas.



there "million Mile warrenty" is still a PITA when you have go through the replacing YOURSELF.

its supost to be "Go BANKS..... or stay home."

[hjeepxj]

Originally posted by KarmirXJ
its supost to be "Go BANKS..... or stay home."

:yup: :agree:

[satan]

Originally posted by Dr. Dyno
Banks only make a header for the 4.0 HO. The only other alternative to the Borla header is the Pacesetter, and that's not exactly reknowned for its high quality. Its only good point is that it's cheap.

Dino -- Have Thorely and Leach stopped their Renix compatible productions (or are we talking something else)? I've had both and still have the Thorley p/n633Y on an '87 that works very well indeed -- Both were available at the beginng of the year, but that was some time ago...

[Dr. Dyno]

Thorley don't list a header for the early 4.0 XJ:

http://www.thorleyheaders.com/jeep_headers.html

The early 4.0 XJ Mopar Performance header carries part no. P4529530 and costs a cool $465. An alternative header #P4876918 costs an even cooler $621.

http://www.jeepparts.cc/catalog/?section=632

Clifford Performance have headers for the early 4.0. You can choose between single and dual outlet (pg06 .PDF ):

http://www.thepcshopper.com/cliffordperformance/catalog.htm

[satan]

Originally posted by Dr. Dyno
Thorley don't list a header for the early 4.0 XJ:

http://www.thorleyheaders.com/jeep_headers.html

The early 4.0 XJ Mopar Performance header carries part no. P4529530 and costs a cool $465. An alternative header #P4876918 costs an even cooler $621.

http://www.jeepparts.cc/catalog/?section=632

Clifford Performance have headers for the early 4.0. You can choose between single and dual outlet (pg06 .PDF ):

http://www.thepcshopper.com/cliffordperformance/catalog.htm

Too bad on the Thorleys - my set works great (they did mention something about minimum runs and all that though - wonder if they could still work something)

As far as the Mopar header :eek: OMG they've gotta have a Jeep logo on em for that price! (sounds like Nick (kolak@qwest.net) has a better deal on those for certain!)

Maybe I should start bending some! HA!

[ZmOz]

Why are 4.0 headers allways so ridiculously overpriced? :rolleyes: I mean...headers for most other engines can be found for under $200...

[Cheropair]

Just picked up a replacement exhaust manifold from O'Reilly autoparts for less than $200. Stainless steel, thick, has a bellows on #1 and #6 cylinders that is supposed to prevent the normal cracking. This is for a '96 4.0 auto. Looks very similar to the OEM, except for the bellows. Dorman brand, same as what Midas and Car-X were going to sell me for $800 installed.

[Dr. Dyno]

Originally posted by ZmOz
Why are 4.0 headers allways so ridiculously overpriced? :rolleyes: I mean...headers for most other engines can be found for under $200...

Probably because of economies of scale. Header manufacturers can sell the more popular headers at lower prices because of the larger quantities sold. The volume of Jeep headers sold is relatively low so manufacturers have to price them higher to keep up their profit margins, otherwise they'll stop making them.
Mopar Performance may have stopped making the early 4.0 header because demand was too low.

[satan]

Originally posted by Cheropair
Just picked up a replacement exhaust manifold from O'Reilly autoparts for less than $200. Stainless steel, thick, has a bellows on #1 and #6 cylinders that is supposed to prevent the normal cracking. This is for a '96 4.0 auto. Looks very similar to the OEM, except for the bellows. Dorman brand, same as what Midas and Car-X were going to sell me for $800 installed.

Yeah - the Motormite p/n 674196 (same as the doorman part, though Dorman does suggest a higher selling price) is often found for like $185USD and has some nice re-design features (if you have an HO motor) http://www.partsamerica.com/product_images/AAP/RNB/5013746_674-170kit.jpg

... But if you're not an HO, their replacement manifold (p/n 674170) does not have the same level of re-engineering, though it is made from thicker material (closer to $175USD)
http://www.partsamerica.com/product_images/AAP/RNB/5013690a_674-170kitLG.jpg

By looking at the shape and features of each, you can easily see what Dr.Dyno is getting at, not only did the head's exhaust port change in '91 (not that you can't use one for the other, but the sealing surface is substantially reduced with the HO manufold on the Renix head) , but the exit changed AND the EGR port was removed - so the "old" XJ header would fit only qty=3 year of production -- compare that to the headers I just bought for my GMC - BigBlockChevy Truck from like '68 - '87 all GM Trucks -- some economy of scale there.!