Difference between stock Mustang GT and Cobra blocks?
Forums at Modded Mustangs
Home Register FAQ Members List Calendar Timeslips Blogs Garage Gallery Auto Loans Search Today's Posts Mark Forums Read Auto Escrow


Go Back   Forums at Modded Mustangs > Mustang Forums > Modular Mustangs > 99 - 04

ModdedMustangs.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old December 19th, 2010, 06:30 PM   #1
Hardcore Enthusiast
 
2004 Mustang GT
11.463@121.50
 
Join Date: Jun 2007
Location: SE PA
Posts: 1,877
saxmanJJ has a spectacular aura aboutsaxmanJJ has a spectacular aura about
iTrader: 1 reviews
Default

Difference between stock Mustang GT and Cobra blocks?


What are the differences between the stock Mustang GT block and the iron Cobra block???

If I switch to a Cobra block, will I need to make any other changes, or do they swap without any changes?
__________________
MM Bracket Racing Crew Member #5
  Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old December 19th, 2010, 06:33 PM   #2
I Post Entirely Way Too Much
 
stal94gt's Avatar
 
2003 mustang v6 ;)
slow
 
Join Date: May 2010
Location: eglin afb florida
Posts: 10,421
stal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud of
iTrader: 2 reviews
Default

cobra blocks are romeo blocks. if you have a 99-mid 01 its a windsor block and heads. every thing can be transfered over. the timing cover bolts are the only thing that is diff when it comes to the swap from windsor to romeo. romeo blocks are romeo blocks cobra or gt.
  Reply With Quote Quick reply to this message
Old December 19th, 2010, 06:50 PM   #3
Hardcore Enthusiast
 
2004 Mustang GT
11.463@121.50
 
Join Date: Jun 2007
Location: SE PA
Posts: 1,877
saxmanJJ has a spectacular aura aboutsaxmanJJ has a spectacular aura about
iTrader: 1 reviews
Default

I have a 2004 Mustang Gt, so I guess you're saying it's a direct swap. What is the advantage of having a Cobra block vs. the 2004 Mustang GT block?

The reason I ask is because I am either going to replace my rotating assembly with all forged parts (keep my block), or just by a complete short block with a Cobra block and the same forged parts.
__________________
MM Bracket Racing Crew Member #5
  Reply With Quote Quick reply to this message
Old December 19th, 2010, 07:44 PM   #4
I Post Entirely Way Too Much
 
86er's Avatar
 
 
Join Date: Nov 2006
Location: Memphis, TN
Posts: 7,992
86er has much to be proud of86er has much to be proud of86er has much to be proud of86er has much to be proud of86er has much to be proud of86er has much to be proud of86er has much to be proud of86er has much to be proud of86er has much to be proud of
iTrader: 0 reviews
Send a message via AIM to 86er Send a message via Yahoo to 86er
Default

if its 96-98 great block some 99/01's had the same teksid block out of the 96-98 cobras, and other 99/01's have the wap block which isnt as strong b/c of the windowed mains in the block. 2v heads on cobra short blocks make some good compression almost 11.1 and yeild some nice gains
__________________
Just a truck
5.4 3v: 264hp 317ft lbs rock stock

The "search" button, its not just for porn

piecing together the next project


faster than your first sexual experience
  Reply With Quote Quick reply to this message
Old December 19th, 2010, 08:15 PM   #5
MM Fanatic
 
tbirdscwd's Avatar
 
2004 Mustang GT
12.88 @ 109.45 N/A
 
Join Date: Feb 2010
Location: Davis, CA
Posts: 3,420
tbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to all
iTrader: -1 reviews
Default

Everything will bolt right up. The main difference between them is that the cobra blocks have knock sensor bosses in the intake valley which need to be ground off to fit blowers such as the Kenne Bells. Other than that, there is no machine work necessary to allow all your 2v stuff to fit or anything. I think that is what you are looking for saxmann.

Being romeo blocks, I believe they also use a different main bearing design.....but I'm sure you won't be using your old shit anyways.
__________________
Fun: 2004 Mustang GT
DD: 1994 Ram 2500 Cummins 4x4


Borla "Stinger" Exhaust Vids
  Reply With Quote Quick reply to this message
Old December 20th, 2010, 12:56 PM   #6
Hardcore Enthusiast
 
2004 Mustang GT
11.463@121.50
 
Join Date: Jun 2007
Location: SE PA
Posts: 1,877
saxmanJJ has a spectacular aura aboutsaxmanJJ has a spectacular aura about
iTrader: 1 reviews
Default

Thank you for the info about compatibility of the parts.

I would like to know if there is any advantage whatsoever to using a "Cobra" block vs our "stock" Mustang GT blocks (2004). I.e. are they stronger in any way???
__________________
MM Bracket Racing Crew Member #5
  Reply With Quote Quick reply to this message
Old December 20th, 2010, 03:45 PM   #7
MM Fanatic
 
tbirdscwd's Avatar
 
2004 Mustang GT
12.88 @ 109.45 N/A
 
Join Date: Feb 2010
Location: Davis, CA
Posts: 3,420
tbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to all
iTrader: -1 reviews
Default

If they are somehow stronger, it doesn't really matter. Our stock GT blockss can take about anything you can throw at them
__________________
Fun: 2004 Mustang GT
DD: 1994 Ram 2500 Cummins 4x4


Borla "Stinger" Exhaust Vids
  Reply With Quote Quick reply to this message
Old December 20th, 2010, 09:24 PM   #8
Procrastinator
 
2003 gt
5.4 32v on the way
 
Join Date: May 2007
Location: Omaha
Posts: 4,542
DickH is a glorious beacon of lightDickH is a glorious beacon of lightDickH is a glorious beacon of lightDickH is a glorious beacon of lightDickH is a glorious beacon of light
iTrader: 2 reviews
Default

gt blocks and termie blocks are the same
  Reply With Quote Quick reply to this message
Old December 21st, 2010, 02:24 AM   #9
MM Fanatic
 
tbirdscwd's Avatar
 
2004 Mustang GT
12.88 @ 109.45 N/A
 
Join Date: Feb 2010
Location: Davis, CA
Posts: 3,420
tbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to alltbirdscwd is a name known to all
iTrader: -1 reviews
Default

Originally Posted by DickH View Post
gt blocks and termie blocks are the same
They are actually different castings, but all of the 2v stuff will fit on it so it really doesn't make a difference.
__________________
Fun: 2004 Mustang GT
DD: 1994 Ram 2500 Cummins 4x4


Borla "Stinger" Exhaust Vids
  Reply With Quote Quick reply to this message
Old January 2nd, 2011, 09:09 PM   #10
Regular
 
 
Join Date: Apr 2008
Posts: 70
20GTstang02 is on a distinguished road
iTrader: 0 reviews
Default

will the c head fit on a gt block? do they use different timing covers or can i use mine?
__________________
  Reply With Quote Quick reply to this message
Old January 2nd, 2011, 09:12 PM   #11
Hardcore Enthusiast
 
2001 Bullitt
12.25@110.4
 
Join Date: Mar 2010
Location: North Carolina
Posts: 2,599
Bullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of light
iTrader: 1 reviews
Default

There was one bolthole that had to be filled on mine putting the GT timing cover on the WAP block, so they're not "exactly" the same. No big deal though.
__________________
Bolt-On Bullitt... Unmodified longblock, stock intake and throttle body.

266rwhp/306rwtq

12.25@110.4 1.64 60ft

Currently Under Reconstruction
  Reply With Quote Quick reply to this message
Old January 2nd, 2011, 09:13 PM   #12
BYAHHHH!
 
Scott2001GT's Avatar
 
2001 Mustang GT
11.649 @ 119
 
Join Date: Mar 2008
Location: Missouri
Posts: 17,432
Blog Entries: 1
Scott2001GT has much to be proud ofScott2001GT has much to be proud ofScott2001GT has much to be proud ofScott2001GT has much to be proud ofScott2001GT has much to be proud ofScott2001GT has much to be proud ofScott2001GT has much to be proud ofScott2001GT has much to be proud ofScott2001GT has much to be proud ofScott2001GT has much to be proud of
iTrader: 5 reviews
Default

Teksid's are 6 bolt mains, no?
__________________
<img src=http://i714.photobucket.com/albums/ww144/scott2001GT/scott2001gt_sig-1.jpg border=0 alt= />

Powered by Ford
Boosted by Precision Turbo and Engine

Thanks to: Wagon Wheel Performance & STL Mustangs
  Reply With Quote Quick reply to this message
Old January 2nd, 2011, 09:19 PM   #13
I Post Entirely Way Too Much
 
stal94gt's Avatar
 
2003 mustang v6 ;)
slow
 
Join Date: May 2010
Location: eglin afb florida
Posts: 10,421
stal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud ofstal94gt has much to be proud of
iTrader: 2 reviews
Default

Originally Posted by Bullitt5339 View Post
There was one bolthole that had to be filled on mine putting the GT timing cover on the WAP block, so they're not "exactly" the same. No big deal though.
are you talking about a wap aluminum block? cause i switched over from a windsor block to a romeo block and i used all the timing cover bolts.
  Reply With Quote Quick reply to this message
Old January 2nd, 2011, 09:26 PM   #14
Hardcore Enthusiast
 
2001 Bullitt
12.25@110.4
 
Join Date: Mar 2010
Location: North Carolina
Posts: 2,599
Bullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of lightBullitt5339 is a glorious beacon of light
iTrader: 1 reviews
Default

Originally Posted by stal94gt View Post
are you talking about a wap aluminum block? cause i switched over from a windsor block to a romeo block and i used all the timing cover bolts.
Yeah, all WAP blocks are aluminum. Wap stands for Windsor Aluminum Plant........
__________________
Bolt-On Bullitt... Unmodified longblock, stock intake and throttle body.

266rwhp/306rwtq

12.25@110.4 1.64 60ft

Currently Under Reconstruction
  Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Forums at Modded Mustangs forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools


Threads Similar to: Difference between stock Mustang GT and Cobra blocks?
Thread Thread Starter Forum Replies Last Post
Difference Between Blocks 97Dustang 96 - 98 12 February 15th, 2010 12:33 AM
Difference in blocks? Willy Mo 99 - 04 24 June 3rd, 2009 02:12 AM
Stock 99-04 blocks itschristorres8 99 - 04 27 May 3rd, 2008 11:38 AM
Difference in Blocks??? 87StangLX 5.0 Mustangs 5 March 24th, 2008 12:16 PM
Anyone Know About Stock Blocks? 89GTCONV 5.0 Mustangs 8 March 31st, 2007 03:46 AM



All times are GMT -4. The time now is 03:42 PM.
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company.
Forum is powered by vBulletin ©2000 - 2014, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.

powered by vBulletin ©2000 - 2014, Jelsoft Ent. Ltd.