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-   -   New Aluminum Cylinder Heads for the 396 (https://classracer.com/classforum/showthread.php?t=52572)

7560 cjp 04-11-2014 01:08 AM
New Aluminum Cylinder Heads for the 396
 
Has anyone heard that NHRA has approved the use of aluminum heads (The Edelbrock Heads) for the replacement of the CI ones that can be no longer Located? it was said they still had to have the same spec's as the CI ones. (IE; 2.06/1.72 valves, the same cc's and the same intake/exhaust spec's)

FireSale 04-11-2014 10:21 AM
Re: New Aluminum Cylinder Heads for the 396
 
There are two new Edelbrock heads on the current list (3/27/14). They are numbers 60547 and 60447. Does this help?

Dale

MAURICE BLENDHEIM 04-11-2014 12:42 PM
Re: New Aluminum Cylinder Heads for the 396
 
The Edelbrock 60547 has a 315 runner and is the same as the GMPP "401" head both being Rectangle Port and Legal. The Edelbrock 60447 has a 290 Oval Port runner, but is listed from suppliers (Summit & Jegs) as NHRA Legal and is described as having 2.19 - 1.88 valve seats. Obviously there is more to this, than I would be ready to assume. Could make quite a difference on a 325-350-360HP combination if its reality. MB.

Bobby Lundholm 04-11-2014 12:48 PM
Re: New Aluminum Cylinder Heads for the 396
 
Isn't this for Super Stock only though?

Chad Rhodes 04-11-2014 01:33 PM
Re: New Aluminum Cylinder Heads for the 396
 
per Edelbrock's website, the rectangle port is legal stock and ss, the oval port is super stock only.

Bobby Lundholm 04-11-2014 02:06 PM
Re: New Aluminum Cylinder Heads for the 396
 
60447 is for the 396/325/350 HP combo's for SS only. Too bad thought I was getting some aluminum heads. :)

SantinoBlanco 03-02-2015 10:21 PM
Re: New Aluminum Cylinder Heads for the 396
 
The 60547 heads on summitracing.com says the spark plug hole is moved closer to the combustion chamber by .150 and the NHRA rule book says it has to be in the same location. Not sure how it's an accepted product

Pedigo Perf 03-03-2015 07:10 AM
Re: New Aluminum Cylinder Heads for the 396
 
Quote:
Originally Posted by SantinoBlanco (Post 463623)
The 60547 heads on summitracing.com says the spark plug hole is moved closer to the combustion chamber by .150 and the NHRA rule book says it has to be in the same location. Not sure how it's an accepted product
By adding 10 HP

Terry Cain 03-07-2022 05:42 PM
Re: New Aluminum Cylinder Heads for the 396
 
Quote:
Originally Posted by 7560 cjp (Post 427395)
Has anyone heard that NHRA has approved the use of aluminum heads (The Edelbrock Heads) for the replacement of the CI ones that can be no longer Located? it was said they still had to have the same spec's as the CI ones. (IE; 2.06/1.72 valves, the same cc's and the same intake/exhaust spec's)
Funny how the stocker guys can't use these heads and have to dig thru junk at swap meets, etc. to get a set of heads but the Super Stock racer can use because they can't locate the stock Cast Iron heads.

Billy Nees 03-07-2022 05:48 PM
Re: New Aluminum Cylinder Heads for the 396
 
Quote:
Originally Posted by Terry Cain (Post 658352)
Funny how the stocker guys can't use these heads and have to dig thru junk at swap meets, etc. to get a set of heads but the Super Stock racer can use because they can't locate the stock Cast Iron heads.
And the rest of us that DON'T have a 396 "have to dig thru junk at swap meets, etc.to get a set of heads" and that's OK?
Somehow, I just don't feel sorry for the poor Stocker guys that run a 396!


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