Club Cobra Gas - N Exhaust  

Go Back   Club Cobra > Engine Building, Tuning, and Induction > Small Block Talk

MMG Superformance
Nevada Classics
MMG Superformance
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
MMG Superformance
Advertise at CC
Banner Ad Rates
MMG Superformance
MMG Superformance
MMG Superformance
March 2024
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            

Kirkham Motorsports

Like Tree1Likes
  • 1 Post By Jim Vander Wal

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 02-12-2019, 06:42 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2005
Location: Punta Gorda, Fl
Cobra Make, Engine: SPF 2473, Roush 427R
Posts: 203
Not Ranked     
Default Roush 427R exhaust manifold gasket replacement

Need to replace exhaust manifold gaskets on my Roush 427R engine. Any suggestions? Brand/part #?
Reply With Quote
  #2 (permalink)  
Old 02-12-2019, 07:00 AM
twobjshelbys's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2009
Location: Las Vegas, NV
Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR
Posts: 5,447
Not Ranked     
Default

Did you contact Roush?
__________________
Cheers,
Tony
CSX4005LA
Reply With Quote
  #3 (permalink)  
Old 02-12-2019, 08:59 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2005
Location: Punta Gorda, Fl
Cobra Make, Engine: SPF 2473, Roush 427R
Posts: 203
Not Ranked     
Default

Not yet. Looking for additional opinions.
Reply With Quote
  #4 (permalink)  
Old 02-12-2019, 01:03 PM
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2007
Location: Carlsbad, Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,610
Not Ranked     
Default

Rousch uses AFR heads. Remflex, Felpro, Mr. Gasket all make exhaust gaskets for these 351W heads.
__________________
Jim
Reply With Quote
  #5 (permalink)  
Old 02-12-2019, 02:12 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2005
Location: Punta Gorda, Fl
Cobra Make, Engine: SPF 2473, Roush 427R
Posts: 203
Not Ranked     
Default

Jim, thanks for the reply. I contacted Olthoff Racing. They use copper RTV, not gaskets to attach headers to cylinder head. Never have had leaks. Thoughts?
Reply With Quote
  #6 (permalink)  
Old 02-12-2019, 02:51 PM
wanab5150's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2008
Location: Ocean Isle Beach, NC
Cobra Make, Engine: Superformance #2769 Roush 427R Dart Block
Posts: 606
Not Ranked     
Default

I had rtf originally. After 5k leaked badly. If you use rev and check and recheck and recheck every 1000 miles until they stop settling you may be ok. I went with felpro instead on my Roush 427r ....AFR heads of course. That was 27,000 ago. I checked a couple of times and a couple slightly loose but I mean slightly.
__________________
Tom
I miss my Tazer
Reply With Quote
  #7 (permalink)  
Old 02-12-2019, 03:17 PM
wanab5150's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2008
Location: Ocean Isle Beach, NC
Cobra Make, Engine: Superformance #2769 Roush 427R Dart Block
Posts: 606
Not Ranked     
Default

Fel-Pro 1487 - 195cc-220cc Exhaust Gasket
PRICE:$26.00

AFR PART #: 6839

QTY:
1
These are for Roush 427 Afr heads .......look at bottom left...Small block ford 205’s are what you have. WARNING.... back in that era of SPF there were two different headers that came on these cars. One set was for small tube headers for 351... and the others are for AFR big port heads. Make sure which headers you have. If you have headers that have a weld about 3 inches from the port then another about 8 inches down then you have small headers for stock 351’s NOT AFR heads. You can also tell when you remove them..... If the gasket is way smaller than the ports on the heads...they’re not the headers designed for this motor and create a blockage and probably cost you 100 hp at 6k rpm. The good news is that if you have small port headers with the big port AFR heads Superformance sold these before the big port heads were being used (dumb asses) because the Roush motors still run good....they just plug the motor up. I’ve seen many many Roush motors in SPF,s with the small headers and the owners have no idea because they’re redicously fast either way.
E,mail me if I confused you. Wanab5150@comcast.net.

Product Information
Fel Pro #1487 Exhaust Gaskets
AFR SBF 195cc Competition Package
AFR SBF 205/225cc
__________________
Tom
I miss my Tazer
Reply With Quote
  #8 (permalink)  
Old 02-13-2019, 04:24 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2005
Location: Punta Gorda, Fl
Cobra Make, Engine: SPF 2473, Roush 427R
Posts: 203
Not Ranked     
Default

Thanks Tom. Great info
Reply With Quote
  #9 (permalink)  
Old 02-13-2019, 04:57 AM
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2002
Location: Grand Rapids, MI
Cobra Make, Engine: FFR Challenge Car, RDI aluminum 427w
Posts: 343
Not Ranked     
Default

I ran SCE embossed copper gaskets. Summit has them, Jegs should too.

They don't compress the way a fiber gasket does; it always seemed that the header bolts would stay tighter. But the mating surfaces need to be pretty flat to start. SCE Gaskets, LLC. Premium Engine Gaskets

Jim
MLI likes this.
Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 12:28 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink