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 Post subject: Re: BBC Cylinder Heads
PostPosted: Fri Oct 28, 2011 7:47 pm 
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Location: North Salem NY
Yes ryan, the 401 is better, but we are looking at the 408 head

Seems on target, and gives another option, for an equivalent head, while remaining reliable !

Since my recent situation, i may go that way too!

Check it out guys, let us know your opinion!

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 Post subject: Re: BBC Cylinder Heads
PostPosted: Fri Oct 28, 2011 8:20 pm 
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Joined: Thu Oct 21, 2010 10:11 pm
Posts: 29
Location: Albany, NY
ssscamaro wrote:
i couldnt open that link but the head is more than likely the 401 casting nhra approved head for stock eliminator that gm calls there l88 replacement. That head is GREATLY improved in material and somehwat in performance as well. It does look different externally..made by edelbrock for GMPP

077s would be your best bet if your staying in supercars competition.

if the 401 got approved someone might not be happy but another someone would be....

Ryan



Hi Ryan,

http://www.summitracing.com/parts/NAL-12363408


Try this one


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 Post subject: Re: BBC Cylinder Heads
PostPosted: Fri Oct 28, 2011 9:45 pm 
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Joined: Fri Jul 25, 2008 6:12 pm
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Location: North Salem NY
Ryan, i think your right, Looks like the 408 is the 401 with out cnc machining etc.
Seems like a good replacement

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 Post subject: Re: BBC Cylinder Heads
PostPosted: Fri Oct 28, 2011 9:56 pm 
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Location: Watertown,Ct.
looks like a good head. :aok

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 Post subject: Re: BBC Cylinder Heads
PostPosted: Sat Oct 29, 2011 12:46 am 
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Joined: Wed Jul 30, 2008 11:21 pm
Posts: 242
trust me could of been on my car if it was any way shape or form possible to be legal...
my brother put them on his zl1 clone...
and from my past experienecs with the edelbrock bbc heads they are night and day difference in reliability..


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 Post subject: Re: BBC Cylinder Heads
PostPosted: Sun Oct 30, 2011 4:34 pm 
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Posts: 315
I opted for 188 open chamber cast iron heads vs 840 closed chamber heads for an 1969 L72 combo. The cost, reliability and availability are the main issues. However, after Teds misfortune with his old closed chamber head, he would be back together alot quicker if he was using open chamber heads as replacement cast iron or aluminum heads more redibly available.


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 Post subject: Re: BBC Cylinder Heads
PostPosted: Tue Nov 29, 2011 7:46 pm 
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Joined: Thu Oct 21, 2010 10:11 pm
Posts: 29
Location: Albany, NY
Hi guys,

Hope everyone had a great Thanksgiving !

Wanted to check in to see if there was anymore thought on using the NHRA replacement head ?

Hope everyone has a productive winter off-season.

Tom


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 Post subject: Re: BBC Cylinder Heads
PostPosted: Wed Nov 30, 2011 10:13 am 
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Joined: Fri Jul 25, 2008 6:12 pm
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Location: North Salem NY
Sorry i didnt get back to you sooner!
I had hoped to be able to use this head also, but after a closer inspection, it does look externally different than stock heads, and through its strength and better flow characteristics, it would be considered a performance gain to allow this head!

The rules committee has agreed at this time that it should not be approved for competition!

Aluminum head choices at this time for bbc would be the ( abbreviated)
392
842
074
077

Tom, thanks for inquiring, and hope to see you at our events!

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 Post subject: Re: BBC Cylinder Heads
PostPosted: Wed Nov 30, 2011 1:00 pm 
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Joined: Thu Oct 21, 2010 10:11 pm
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Location: Albany, NY
Thanks Ted !

No problem at all.

Probably going to go with a 990 Cast Iron head rect port head. Look forward to coming out to watch an event, maybe my kid will be ready to race by then as well. Learners Permit at this point..:)

Tom


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 Post subject: Re: BBC Cylinder Heads
PostPosted: Wed Nov 30, 2011 1:15 pm 
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Location: North Salem NY
:aok

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 Post subject: Re: BBC Cylinder Heads
PostPosted: Fri Dec 16, 2011 2:20 pm 
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Joined: Thu Oct 21, 2010 10:11 pm
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Location: Albany, NY
Looking at an iron headed combination

990 heads
or 188 heads.

I assume these are legal as well for an LS6 motor combination.

Tom


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 Post subject: Re: BBC Cylinder Heads
PostPosted: Fri Dec 16, 2011 3:01 pm 
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Location: North Salem NY
Yes
Both are allowed

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 Post subject: Re: BBC Cylinder Heads
PostPosted: Mon Dec 19, 2011 5:25 pm 
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Location: CT
Does anyone know if the rectangular port cast iron casting 14097088 is allowed? its the typical 325 cc intake runner,119 cc combustion chamber.

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 Post subject: Re: BBC Cylinder Heads
PostPosted: Mon Dec 19, 2011 6:38 pm 
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In my opinion, it should be ok because iron rectangle heads came on the 70 LS-6. But I would check with the committee before I spent any money. Just sayin'


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 Post subject: Re: BBC Cylinder Heads
PostPosted: Mon Dec 19, 2011 9:43 pm 
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Joined: Fri Jul 25, 2008 6:12 pm
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Location: North Salem NY
That head cannot be used!

088s werent available til the 90s and were for the mark v, allthough i believe they worked on mark iv also

As the rules stand....Sorry, No go!

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