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VeryTangled · 07-07-2013, 04:37 PM

As a curious rookie, what advantages (aside from 'originality') would aluminum heads provide for, say, a stock '36 21 stud over the iron ones? I understand the compression ratio might be able to be changed, but I think that can be done by modifying the iron ones, can't it?

Wasn't the issue with the original heads something to do with the original coolant/antifreeze eroding them?

Thanks in advance for the education.

-VT/Jeff

PS I also located this tread in the archives, doesn't add a whole lot though.
http://www.fordbarn.com/forum/showthread.php?t=50299

07-07-2013, 04:37 PM	#27
VeryTangled Senior Member Join Date: May 2010 Location: (Not far enough...) Outside of DC Posts: 3,387	Re: Reproduction 21 Stud heads As a curious rookie, what advantages (aside from 'originality') would aluminum heads provide for, say, a stock '36 21 stud over the iron ones? I understand the compression ratio might be able to be changed, but I think that can be done by modifying the iron ones, can't it? Wasn't the issue with the original heads something to do with the original coolant/antifreeze eroding them? Thanks in advance for the education. -VT/Jeff PS I also located this tread in the archives, doesn't add a whole lot though. http://www.fordbarn.com/forum/showthread.php?t=50299