94-98 mustang headers- worth it? - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 8 (permalink) Old 10-24-2014, 10:40 PM Thread Starter
PostWhore
 
white lincoln's Avatar
 
Join Date: Jul 2005
Location: New Mexico
Posts: 1,086
Send a message via MSN to white lincoln
94-98 mustang headers- worth it?

Been awhile since I been on. It's that time again to do the head gaskets. Seems I should have replaced the head bolts at the time I did the last head gaskets.

What I was wondering is it worth putting in $70 for a pair of 94-98 Mustang headers to replace the stock ones? Does it really make that much difference?

Since we are keeping the car, I would like to put new dual exhaust on the car at some point and since I will have the heads off, would it be worth dropping a pair of mustang heads on in future thoughts of getting new dual exhaust? I currently have the v6 exhaust up to the resonance muffler then it is V8 exhaust all the way back.

Suggestions?

1995 Lincoln Town Car Signature Series - 200k!
1994 Mercoury Cougar XR7 - 150k and still going.

I've had too many other cars to mention...
white lincoln is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 10-25-2014, 07:06 AM
Seasoned PostWhore

Super Moderator
 
Join Date: May 2003
Location: Tinton Falls, NJ
Age: 37
Posts: 7,449
Garage
Send a message via AIM to MadMikeyL
The mustang heads and headers are no better than the tbird parts. If you want better flow, get some 94/95 SC manifolds.

-91 Cougar LS, coming soon, complete overhaul with a 427" Windsor.
-90 XR7 5-speed black on black w/sunroof, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, and ported big valve heads
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
-90 SC Automatic rustbucket winter beater
-97 Tbird Sport 4.6 Nice weather daily driver
-"Your buddy Mike is INSANE!" -ClintD's dad
MadMikeyL is offline  
post #3 of 8 (permalink) Old 10-25-2014, 08:12 AM Thread Starter
PostWhore
 
white lincoln's Avatar
 
Join Date: Jul 2005
Location: New Mexico
Posts: 1,086
Send a message via MSN to white lincoln
Excellent. Thank you for the info, it really helps.

1995 Lincoln Town Car Signature Series - 200k!
1994 Mercoury Cougar XR7 - 150k and still going.

I've had too many other cars to mention...
white lincoln is offline  
Sponsored Links
Advertisement
 
post #4 of 8 (permalink) Old 10-25-2014, 08:27 AM
̇
 
Rayo's Avatar
 
Join Date: Nov 2008
Location: Ohio
Posts: 3,702
Garage
94-95 (3.8L) MN12 exhaust manifolds are the same NA or SC..

For the little gain you would receive from trying to get the 94-98 (3.8L) Mustang exhaust manifolds to work..It wouldn't be worth it IMO..

Think about this..You would need someone to make you custom down tubes just to fit a pair of stock 94-98 (3.8L) Mustang exhaust manifolds..

Basically build you a custom exhaust from the exhaust manifolds to the resonator..

Then if you wanted to keep your EGR..You would have to find a good used EGR pipe too..


Quote:
Originally Posted by rbrown View Post
Dave on sccoa did a test and the 94-95 exhaust manifolds were real close to kooks mid-length headers. The 96-97 3.8L MN12 tubular ones didn't do so good.

http://www.sccoa.com/forums/showthre...haust+manifold
My advice is to just port a pair of 94-95 (3.8L) MN12 exhaust manifolds, and be done with it..






Rayo..

.
.
1991 Ford Thunderbird Sport

"If you don't know where you're going..Any road will take you there." George Harrison
Rayo is offline  
post #5 of 8 (permalink) Old 10-25-2014, 08:41 AM Thread Starter
PostWhore
 
white lincoln's Avatar
 
Join Date: Jul 2005
Location: New Mexico
Posts: 1,086
Send a message via MSN to white lincoln
I have had my car for some 17 years and have done nothing to it but keep it running. One reason I never modified it is because without major work, there is little that can be done to increase power in this engine / drive train.

Cold air intake may look cool, but unless you run the engine at high RPM's, there is not much gain. Same to be said about exhaust and intake, not much to be gained without major mods.

So I will pull the heads, clean her all up and put her back together (again) and keep her running for another 17 years.... oh, I may get it painted. Clear coat and paint is going at a rapid rate due to global warming...

Thanks guys for proving that without spending real money to modify this car, I would just be wasting money.

1995 Lincoln Town Car Signature Series - 200k!
1994 Mercoury Cougar XR7 - 150k and still going.

I've had too many other cars to mention...
white lincoln is offline  
post #6 of 8 (permalink) Old 10-26-2014, 10:47 PM Thread Starter
PostWhore
 
white lincoln's Avatar
 
Join Date: Jul 2005
Location: New Mexico
Posts: 1,086
Send a message via MSN to white lincoln
rebuild

I got the heads off and found the lower drivers side head bolts were not tight. The upper bolts of the block were fine. The passenger side was fine, all 8 bolts where very tight, as they should be.

I can understand the heads leaking on the drivers side, but not the passenger side. All I can suspect is that the leakage happened after the car cooled down because the spark plugs in 3 and 6 where fowled and rusty.

As I mentioned, it is possible that even though the head bolts I had on the car originally were re-usable, they may have not been good enough after years of use to re-use again.

I have some parts to order and will get the car back up and running by next weekend of sooner.

1995 Lincoln Town Car Signature Series - 200k!
1994 Mercoury Cougar XR7 - 150k and still going.

I've had too many other cars to mention...
white lincoln is offline  
post #7 of 8 (permalink) Old 10-28-2014, 04:53 AM
4th Gear Poster
 
Join Date: Dec 2012
Location: lakeland fl
Posts: 284
when you have them off.

It sounds like the right side is warped have a machine shop look at it.

If you do send them to a machine shop it would be a good thing to let them replace all the valve guide seals as well.

To get them out of the way because of the age on them not just that while the heads are off it makes it easy to do them then and there for a peace of mind.
95mercxr7 is offline  
post #8 of 8 (permalink) Old 10-28-2014, 06:16 PM Thread Starter
PostWhore
 
white lincoln's Avatar
 
Join Date: Jul 2005
Location: New Mexico
Posts: 1,086
Send a message via MSN to white lincoln
Quote:
Originally Posted by 95mercxr7 View Post
when you have them off.

It sounds like the right side is warped have a machine shop look at it.

If you do send them to a machine shop it would be a good thing to let them replace all the valve guide seals as well.

To get them out of the way because of the age on them not just that while the heads are off it makes it easy to do them then and there for a peace of mind.
What sucks is I had the heads planed back at 114k. It now has 138k. That is just crap. And at $200 to do it... I'd rather put it all back together and get rid of it.

Damn V6 engines!

I put a straight edge over them last night and if they are off, it is very slight. Wish I had a better straight edge.

Thanks though, I appreciate the thought.

The drivers side bolts where a bit lose, but the passenger side require a 1/2" breaker bar to get them lose. I am going to replace the bolts with new ones and let it go at that.

1995 Lincoln Town Car Signature Series - 200k!
1994 Mercoury Cougar XR7 - 150k and still going.

I've had too many other cars to mention...
white lincoln is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums 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











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

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