[DeTomaso] Fw: Aluminum Heads - opinions

[Will Demelo]

----- Original Message ----- 
From: "Lynn Wall" <cars at wt-inc.com>
To: <Detomaso at realbig.com>
Sent: Wednesday, September 03, 2008 8:29 PM
Subject: [DeTomaso] Aluminum Heads - opinions


> All,
>
>
>
> The machine shop has lost my Cleveland heads.  They have offered to
> compensate me fairly for them and since I do A LOT of work with them 
> through
> my company I have no reason to doubt it.
>
>
>
> Three questions:
>
> First:
>
> What is the value of a set of 4V cast iron heads.  Assume no cracks or
> damage.  I have everything but the valves and springs

""""Open or closed chamber? I think open chambers are worth $100 but the 
closed are about $300-$500. You're better off to go with the australian 2V 
head for an unstroked street motor, IMHO.
>
>
>
> Second:
>
> What are the opinions regarding Aluminum heads?  If I'm buying heads I 
> might
> as well consider all options
>
> I am not stroking the motor but am boring it out 0.030
>
> Revs over 6500 scare the crap out of me.
>
> I enjoy great acceleration in 1st through 4th (torque)
>
> I would rather smoke the tires that do 200 mph (my apologies to MD)
>
> 10.5:1 compression max
>
> Most of the lower end components are going to be stock due to budget 
> issues.
> Obviously if I am going to aluminum heads I will go to a roller valve 
> train.
>
""""You'll run 10:1 max with iron heads and 11:1 with aluminum. You're best 
bet for a street head would be CHI, AFR or Edelbrock. I went with CHI 3V on 
my last motor and they flowed well right out of the box. The header bolt 
holes (not the ports) are raised by .4". The 3V heads need a matching intake 
which is not cheap but works well. The stock headers will bolt right up. CHI 
is now making a 4V head that is identical on the intake and exhaust sides, 
so you can use any 4V intake. I have heard good things about AFR and 
Edelbrocks as well."""""
>
>
> Third:
>
> Do all the available header options bolt right up to the aluminum heads?
"""See above"""
>
>
>
> Thanks in advance,
>
>
>
> Lynn
>
>
>
>
>
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