NHRA allows Alum heads in stock/ss

Ross Family Racing · 12-16-2011, 04:23 PM

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

Chris DeGidio · 12-16-2011, 05:03 PM

The 2012 Edelbrock guide states that their Mopar 440 head is legal,but I don't see it listed yet.These heads are really needed and I don't know why NHRA won't list them.

Hopefully Travis can give some details on this.

Jim Kaekel · 12-16-2011, 05:39 PM

Don't take the Edelbrock catalog for gospel. It also shows that the Olds head is legal for Stock and Super Stock, however, it is NOT legal for Stock.

Stephen & Horace Johnson · 12-16-2011, 06:02 PM

Why is there a HP increase for running these heads......Its just a replacement head

ppmracing · 12-16-2011, 05:37 PM

The Mopar 452 Aluminium heads is leagal for the 383 and 440cu.so in that way we dont need the Edelbrock, But that is welcome allso. But i like a "branded heads",,, even if the Mopar heads are made by Edelbrock !!!

Ed Carpenter · 12-16-2011, 06:43 PM

Quote:

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 · 12-16-2011, 08:09 PM

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 · 12-16-2011, 08:20 PM

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 · 12-16-2011, 09:01 PM

Quote:

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 · 12-16-2011, 09:06 PM

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?

12-16-2011, 04:23 PM	#1
Ross Family Racing Member Join Date: Jan 2005 Location: St.Clairsville, Ohio Posts: 464 Likes: 0 Liked 52 Times in 15 Posts	NHRA allows Alum heads in stock/ss Edelbrock aluminum heads are now allowed on some AMC,Ford,Buick,& Dodge engines. Go to the NHRA racer page for details. Jeff Ross

12-16-2011, 05:03 PM	#2
Chris DeGidio Member Join Date: Jun 2007 Posts: 364 Likes: 8 Liked 2 Times in 2 Posts	Re: NHRA allows Alum heads in stock/ss The 2012 Edelbrock guide states that their Mopar 440 head is legal,but I don't see it listed yet.These heads are really needed and I don't know why NHRA won't list them. Hopefully Travis can give some details on this. __________________ Nautilus Racing Last edited by Chris DeGidio; 12-16-2011 at 05:06 PM.

12-16-2011, 05:39 PM	#3
Jim Kaekel VIP Member Join Date: Jul 2002 Location: Michigan Posts: 1,222 Likes: 134 Liked 498 Times in 104 Posts	Re: NHRA allows Alum heads in stock/ss Don't take the Edelbrock catalog for gospel. It also shows that the Olds head is legal for Stock and Super Stock, however, it is NOT legal for Stock. __________________ Jim Kaekel 3836 STK

12-16-2011, 06:02 PM	#4
Stephen & Horace Johnson Senior Member Join Date: Jul 2007 Posts: 949 Likes: 323 Liked 148 Times in 46 Posts	Re: NHRA allows Alum heads in stock/ss Why is there a HP increase for running these heads......Its just a replacement head __________________ Stephen Johnson #2162 Horace Johnson #2167 SS/D 427 Ford Fairlane NHRA-IHRA

12-16-2011, 05:37 PM	#5
ppmracing Junior Member Join Date: Dec 2011 Posts: 27 Likes: 2 Liked 2 Times in 2 Posts	Re: NHRA allows Alum heads in stock/ss The Mopar 452 Aluminium heads is leagal for the 383 and 440cu.so in that way we dont need the Edelbrock, But that is welcome allso. But i like a "branded heads",,, even if the Mopar heads are made by Edelbrock !!!

12-16-2011, 08:09 PM	#7
Wade_Owens Senior Member Join Date: Jul 2007 Posts: 578 Likes: 0 Liked 3 Times in 1 Post	Re: NHRA allows Alum heads in stock/ss 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?

12-16-2011, 08:20 PM	#8
Tim Ellis Member Join Date: Dec 2004 Location: Beavercreek Or. Posts: 264 Likes: 22 Liked 6 Times in 5 Posts	Re: NHRA allows Alum heads in stock/ss 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.

12-16-2011, 09:06 PM	#10
Rory McNeil VIP Member Join Date: Jun 2007 Location: from Vancouver BC Canada, now in Nova Scotia Posts: 1,257 Likes: 244 Liked 937 Times in 258 Posts	Re: NHRA allows Alum heads in stock/ss 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? __________________ NHRA 6390 STK M/S 85 Mustang

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