99+ head swap

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What all is needed to do a 99+ headswap into a gen2?
-heads
-intake
-valve covers (?)
-fuel rails
-headers

anything else?

isnt the 99+ a returnless fuel system? if so what could i do for reails? will 96-8 cobra ones fit with a 99+ intake?
 
RE: 99+ head swap

They flow better....straighter shot from the intake to head, so it flows a little bit better.

After speaking to some shops that do work on these heads though, it sounds like oyu'd be better off staying with the 93-98 heads and getting them worked.
 
RE: 99+ head swap

unless you know fo someone who will work them for free, a straight swap to something is what i am going to have to be doing...
 
RE: 99+ head swap

The gains from a stock headswap would not be very great. The heads on our cars are actually better when ported. With the amount of work involved in a head swap, it's totally not worth it if you're just putting on 99-up heads. Just get a 97-98 Cobra intake, and save up a few more bucks and have your heads ported.
 
RE: 99+ head swap

99+ heads ?? something I've been thinking about. But I'd rather just swap the whole 01 cobra engine. Even better 03 short block.

Dave, you rode in Lidio's car. 99+ heads will let you have that 10 psi of the line with the intercooled KB right now, without the wait for the b-style setup to come out.
 
RE: 99+ head swap

will 99+ heads even work with the intake manifold, or would you have to change manifolds as well. I think 99 heads might be good with Marks because they are know for giving a little more torque will sacrificing some max flow and hp numbers. But with a heavy Mark, torque numbers are more important than hp.
 
RE: 99+ head swap

With a stock or close to stock Mark VIII the gains would be fairly substantial, IMO. You would need to go to the 99+ Cobra intake as well.
 
RE: 99+ head swap

If anyone does a head swap; the new heads had better be ported, and have a valve job. If not you are an idiot and wasting a lot of time and money IMO.
 
RE: 99+ head swap

if your going to go na then build it up for that but if you want better heads for a blower or something then you can just buy a 04 maruader or mach motor and put pistons and rods in it with a kennebell.this will make a very nice setup.
 
RE: 99+ head swap

does the ortec supercharger kit come with all of the pipes and mounting plates. and would you need to get a cobra head for it to fit or does it come with one.
 
RE: 99+ head swap-PICS of a swap!

RE: 99+ head swap-PICS of a swap!

I justy did a head swap on a 95 mark VIII. of course, I swapped a set of stock heads on due to a high-mileage motor with a valve-spring problem. old heads-177k, broken #3 intake spring. new heads=60k miles on them, off my old motor.

Dave, the amount of work "needed" to do a head swap is not much more than the amount of work needed to "port" stock heads...motor out, old heads off, new heads on-OR-old heads back on, motor back in.

the intake comes off anyway, along with exhaust, etc. sending the old heads out for some valve work, or installing a set of new heads requires about the same amount of work.

oh, and from now on, the motor comes out with the K-member for me. I am a believer in this method. An hour after the car was racked, the front cover was coming off.

see some pics!
this shot, I removed the valve covers, and intake to have a looksie:
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00047.jpg

after seeing the problem(notice missing valve spring I removed):
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00038.jpg

and seeing all this:
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00048.jpg

I decided to do this:
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00051.jpg
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00050.jpg
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00054.jpg

an hour later, I had this:
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00059.jpg

then, I did this:
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00063.jpg

Then came these:
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00066.jpg
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00067.jpg

Then this:
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00068.jpg

and then this:
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00069.jpg

and finally this:
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00074.jpg

I needed to make this(Pony, you'll laugh):
http://img.photobucket.com/albums/v425/Blackicelsc/DSC00071.jpg

thats about it. about 12 hours of cleaning, torquing, reading, head scrathing, pizza eating, dog kicking, smoke smoking, tool losing, prayer saying, and help seeking, me and a buddy were done.



[a BlackIceLSC-VP GGM8
http://www.goldengatemark8.com/
94 Black/Black M8
97 Toreador red/Lt. graphite LSC M8
see profile for mods(lots of them)[/a]​
 
RE: 99+ head swap-PICS of a swap!

RE: 99+ head swap-PICS of a swap!

[div class="dcquote"][strong]Quote[/strong]
thats about it. about 12 hours of cleaning, torquing, reading, head scrathing, pizza eating, dog kicking, smoke smoking, tool losing, prayer saying, and help seeking, me and a buddy were done.
[/div]

I see your problem....no beer drinking!
 
RE: 99+ head swap-PICS of a swap!

RE: 99+ head swap-PICS of a swap!

Kudos, Craig. Your mechanical prowess is commendable. :)
 
RE: 99+ head swap-PICS of a swap!

RE: 99+ head swap-PICS of a swap!

The best part of going to 99 and up heads fould be the FRP Intake Manifold
Keith
93 BLACK
93 MAROON
Only use the brakes to stop and get gas.
 
RE: 99+ head swap-PICS of a swap!

RE: 99+ head swap-PICS of a swap!

[div class="dcquote"][strong]Quote[/strong]
Kudos, Craig. Your mechanical prowess is commendable. :)
[/div]

Mechanical prowess? nah...my ability to operate basic hand-tools, read and follow basic instructions, and retain the visual memory of "what goes where" is all one needs.

Oh, and a nice fat air compressor, and about $100k worth of tools!

But, for the record...thanks JP.

and yes...that is a cam-lock tool. 2X 3/8 drive extensions, welded to angle-iron. saved us $240(Mc Guiver is alive and well)
 
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