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Original Message
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I'd be interested in the pics. |
By Dave Shoe - 09/14/2002 11:08:15 AM; IP 67.4.133.124 |
I'm aware that Ford cast up magnesium intakes and valve covers for the 427SOHC. These were particularly common in the first Cammers from 1964-1/2, as they were intended for NASCAR competition. I'm also aware that some were cast for the 427MR for use in Cobras, GT-40s, and probably for limited aftermarket application.
Magnesium is tougher to cast without flaws than aluminum, so they tend to seep a bit more oil. Also, they don't handle age or water particularly well, so new magnesuim pieces tend to offer better competitive value than old pieces. Old pieces would retain historic and restoration appeal, however.
Magnesium is preferred over aluminum because it weighs less. With all the quirks of magnesium, shaving a couple pounds while maybe gaining a little oil leak will win more races than a heavier, clean engine will.
JMO, Shoe.
Here's a partial pic from a recent ebay auction:
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