Why Compacted Graphite Iron?
It seems compacted graphite iron is old school actually. Now-a-days it seems to be worth the cost. I bet typical cast gray iron is simply cheaper which is why US car makers held on to it for so long. All Nascar blocks are CGI. Looks like US engine builders are way behind...ie: 1949 behind.
I have no idea if Ford actually came up with the reverse flow heads. I've often noticed technology that shows up on cars...like 4 valve heads or overhead cams...was proven on aircraft engines many many years prior to being used on car engines. Not that this is where the idea came from. I'm just saying.
If memory serves me correct...the first place I saw it was actually on the now shelved 4.5L GM Duramax originally planned for 1/2 ton trucks. It too had the reverse flow heads.
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If it's such a good idea why is Furd the only one that ever thought of it?
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What? Isn't that the whole point of the "idea"? IE: Nobody ever thought of it? How can anyone use something if nobody ever thought of it? And once someone has the idea...nobody else can think of it. Its done been thinked of
. At that point is just copying.