[DeTomaso] Cleveland 2v vs 4v heads

[Göran Malmberg]

By comparsion here, the 351 Boss of 1969 had 390 ibsf @ 4000 rpm in stock 
form.
Goran

----- Original Message ----- 
From: "P. Rimov" <rimov at charter.net>
To: <DeTomaso at realbig.com>
Sent: Thursday, March 06, 2008 6:58 AM
Subject: Re: [DeTomaso] Cleveland 2v vs 4v heads


>I am sure Sir Daniel Jones will chime in on this one as he is our resident
> expert on 2v vs 4v options.  For the street the 2v Aussi heads are the way
> to go in my humble opinion. Dan helps me set up my mildly built Cleveland
> with Aussi 2v heads, Performer and 725 Demon which makes 393hp/425ft at 
> 5700
> rpm and 3800 rpm respectively. The Aussi 2v heads with a two plane 
> manifold
> like a Performer lack the 4000rpm kick the 4v heads have but have a really
> long flat torque and horse power curve right of idle. My engine is done at
> 5700 but that is due to my cam, exhaust and intake choice. An option for
> more hp/torque with the Assui heads is with the Weiand X which will make
> more peak hp, give you the 4000rpm kick as that of the 4v heads and keeps
> going well past 6500 but there is some loss of torque and hp on the 
> bottom,
> idle is not as nice and it takes a bit more time to warm up. If you are
> looking for great heads for typical street driving the Aussi 2v heads are
> the way to go. However, if you are looking for really big power then the 
> 4v
> closed chamber heads or aluminum race heads are a better flavor.
>
> Paul
>
>
> ----- Original Message ----- 
> Sent: Wednesday, March 05, 2008 5:45 PM
> Subject: [DeTomaso] Cleveland 2v vs 4v heads
>
>
>>I was wonder what the thoughts were between the 2v heads or the 4v heads
>>for
>> a Pantera?  What about a 1984 Block?  Thanks for any  help
>>
>>
>>
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