Re: Aluminum vs. cast iron

[Steve Chervinsky <63hemipolara@xxxxxxxxx>]

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Single plane is best for higher RPM but less torque and dual plane for
torque. Rally the difference from cast to aluminum is weight, also
ease of porting if you want.

Magnesium are good too, but 1 backfire and they are usually toast.


On Fri, Mar 27, 2009 at 6:48 AM, Gary H. <spigot2039@xxxxxxxxxxx> wrote:
>
> Check out "Mopar Intake Manifold Shootout" here:
> http://www.hotrod.com/techarticles/hrdp_0801_mopar_intake_manifolds/edelbrock_performer_rpm_manifold.html
>

>>Who makes the performer RPM ? How is it for torque and what is the best rpm
>>range? Is it single plane or dual plane? I have a 413 engine.  Thanks for
>>any input................MO...sw  iowa

-- 
Steve
'63 Hemi Polara

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