|
Shelby heads vs. Edelbrock heads
I recently read that the Shelby heads have a 2.250/1.750" valve package, as opposed to the Edelbrock's maximum of 2.19/1.73".
So, is it possible to have TOO much breathing ability? I also haven't priced any of this stuff so if the Shelby is more $$$, would this difference make it worth it? Just curious. Ben |
I thougth the Shelby heads came with 2.19 in and 1.75 exh? One problem with the Shelby heads is the valve positions. Edelbrock relocated the valve slightly in relation to the cylinder. This allows for less shrouding of the valves by the clylinder walls. The biggest valves and ports in the world won't help if the mixture entering or exiting the engine is blocked or interupted by the cylinder walls. Airflow is all about the proper combination. All of the big name FE engine builders I know of are using the Edelbrock heads. Money is not a concern with some of these builders so if the Sheby head was better, they'd be using them.
my .02 --Mike |
I have Edelbrock heads. I am running 2.25" intake & 1.75" exhaust valves. They do fit without any special machine work required.
Also, I suspect that the "Shelby" heads are Edelbrock units. Look closely at the ridge on the exhaust port on the "Shelby" heads. It's the same thickness as the Edlebrock heads. I believe that this thick ridge is unique to Edelbrock's castings. Also, since Edlebrock manufactures the so called new "Shelby" dual plane and single plane manifolds, aka the Edelbrock Performer RPM & Victor JR. it only stands to reason the heads come from the same place. I could be wrong and if anyone knows for certain I would like to know. |
| All times are GMT -7. The time now is 10:01 AM. |
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, 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: