NHRA allows Alum heads in stock/ss

[Ed Carpenter]

Originally Posted by Ross Family Racing

Edelbrock aluminum heads are now allowed on some AMC,Ford,Buick,& Dodge engines. Go to the NHRA racer page for details.
Jeff Ross

Where is the love for the Chevy racer??? LOL

[Wade_Owens]

So, port shape, location, valve size, chamber size and shape, guide diameter, shape and height, etc, are all EXACTLY the same as stock? Outside of aluminum saving some nose weight, why did Edelbrock go to all the trouble?

[Tim Ellis]

They aren't the same configuration as stock heads, at least the small block Ford isn't. It's a Performer RPM head, bigger valves, better ports... I don't think it's a bad idea. A lot more cost effective than paying to build a set of SS heads. Yes I know the argument about escalating mods.

[Christopher Stewart]

Originally Posted by Tim Ellis

They aren't the same configuration as stock heads, at least the small block Ford isn't. It's a Performer RPM head, bigger valves, better ports... I don't think it's a bad idea. A lot more cost effective than paying to build a set of SS heads. Yes I know the argument about escalating mods.

Easier to repair too.

[Rory McNeil]

I`m not sure if all the Edelbrock heads have no exhaust crossover passage or not, but I know many do. Yet with a factory head, you are not allowed to plug the crossover into the bowl area. Also, I`m pretty sure that not all the new heads approved use the same combustion chamber volume or valve sizes for every application that they are approved for. Interesting, eh?

[Tim Ellis]

I wish the Performer rpm heads were ok'd for stock too, especially for my 89 5.0l

[Bill Harris]

Like the Olds head, the Edelbrock is only specified for SS for the 429 CJ Ford motor (at a 10 HP premium), of which there has been exactly one built in the last 20 years, and it hasn't been run in two years. The stocker still has to run the OEM unobtainium version. And there are those who are bitching about the lack of Chevy heads... don't make me laugh...

[Chris DeGidio]

The Edelbrock 383-440 Mopar heads are the same as the Mopar "452"aluminum heads Mopar sells thru MP.They are made for Mopar by Edelbrock,and are legal for S/S.The 2012 Flyer has a part number and says they are legal heads.The Edelbrock heads typically are cheaper price wise than the Mopar 452 aluminum heads.

The Eddy and 452 Mopar heads have 2.14 I and 1.81 E valves whereas the OEM iron head are 2.08 I and 1.74 E.

[Hudlow66]

Originally Posted by Chris DeGidio

The Edelbrock 383-440 Mopar heads are the same as the Mopar "452"aluminum heads Mopar sells thru MP.They are made for Mopar by Edelbrock,and are legal for S/S.The 2012 Flyer has a part number and says they are legal heads.The Edelbrock heads typically are cheaper price wise than the Mopar 452 aluminum heads.

The Eddy and 452 Mopar heads have 2.14 I and 1.81 E valves whereas the OEM iron head are 2.08 I and 1.74 E.

Neither one of these heads would work for somebody running a '66 383 combo, would they? 2.08 in. but the little 1.60 ex. (like the early "915")

[Dean3870]

JOKE!!! just call it jr. comp
mike dean
3870