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.
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>
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