Aluminum vs. Iron FE block longevity

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#26 (permalink)

06-11-2012, 03:13 PM

RodKnock

Senior Club Cobra Member

Join Date: Feb 2007

Cobra Make, Engine: KMP 539, a Ton of Aluminum

Posts: 9,592

Not Ranked

Quote:

Originally Posted by lippy

I've read Siamese cylinders pose their own cooling problems as the coolant cant flow between the Siamesed cylinders. This apparently can lead to uneven cooling and out of round cylinders in extreme cases. Based on the good info in this post and elsewhere, I am starting to lean toward an iron Pond 427/482.

I'm no genius, but there are probably at least a couple thousand aluminum Pond and Shelby blocks out there running now. I haven't read about any cooling problems, at least related to the alloy blocks. Aluminum should dissipate heat anyway. And the cost difference is a rounding error.

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