Club Cobra

Club Cobra (http://www.clubcobra.com/forums/)
-   Keith Craft Racing (http://www.clubcobra.com/forums/keith-craft-racing/)
-   -   Keith Blue Thunder Fe Heads (http://www.clubcobra.com/forums/keith-craft-racing/69712-keith-blue-thunder-fe-heads.html)

John A. Simpson 05-22-2006 09:52 AM
Keith Blue Thunder Fe Heads
 
Hi Keith, What is your opinion of the Blue Thunder FE heads? I like the shallow combustion chamber compared to the usual FE bathtub, but how do you like the heads overall. I'm building a 4.250 stroked S.O. and I'd like to get my Heads, cam and maybe pistons from you. I'm trying to decide between your ported Edelbrocks or the Blue Thunder heads, what do you suggest?

Keithc8 05-23-2006 12:49 AM
I have used the Blue Thunder heads and have some in stock. I have some nice CNC programs on there heads. The problem with the small chamber as you describe it is that it kills the flow down low where most street engines need it. I had to open the chamber up to about 80cc to get the valves un shrouded. The head is plenty thick so you can mill it down if you want but this can also be done with the Edekbrock heads. The Blue Thunder also takes a special rocker stand that they sell for the regular style FE rockers so some of your after market rockers do not work real easy. There is a T&D rocker assembley available for it. The heads cost almost twice as much as the Edelbrocks when buying the heads bare and they need to be worked on as well. I just have not seen enough advantages if any in the MR style head to justify the cost difference. Just let us know how we can help. Thanks, Keith

John A. Simpson 05-23-2006 08:35 AM
Thanks Keith, I will give you a call .

DavidNJ 06-04-2006 01:03 AM
Quote:
Originally Posted by Keithc8
The problem with the small chamber as you describe it is that it kills the flow down low where most street engines need it. I had to open the chamber up to about 80cc to get the valves un shrouded.
I didn't understand what you meant by 'small chamber...kills flow down low'. Could you elaborate on this a little more?

Do you port the BT heads yourself or use ET or similar shop? Was the unshrouding part of the CNC?

And finally, how much are they?

Thanks,

David


All times are GMT -7. The time now is 11:43 AM.

Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2026, 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: