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The weight is the main diff of the 2, and well of course the price. Aluminum heads will run you a premium. Iron is what the rest of the block is made of and is much heavier but also stronger and less likly to flex or expand when it gets hot.
 

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Yeah, if the engine gets too hot, the aluminum heads will expand more than the block, and blow a gasket. Happened all the times in an old car we used to have, Went through about 5 of them.
 

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Are you sure there is such thing?
I didn't even know they made aluminum cleavland heads! Please post a pic or link to what they look like, if they exist.
Thanks
 

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I belive the 351C uses the same heads as the 385 series blocks and there are all sorts of aluminum heads for these blocks. Give summit a call and I am sure they can work something out for you


<font size=-1>[ This Message was edited by: BobCat on 6/17/02 10:36am ]</font>
 

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On 2002-06-16 22:35, BobCat wrote:
I belive the 351C uses the same heads as the 385 series blocks and there are all sorts of aluminum heads for these blocks.
<font size=-1>[ This Message was edited by: BobCat on 6/17/02 10:36am ]</font>

FYI. 351C heads and 429/460 heads are NOT interchangeable.
 
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