SAGINAW, MI – General Motors Corp. will begin using precision sand casting technology to make its Gen IV V-8 engines due in 2006. The process will allow GM to cast an intricate aluminum engine block that is lightweight yet strong enough to withstand outputs between 350-450 hp, according to GM insiders here at the auto maker’s Saginaw Metal Casting Operations (SMCO). GM’s Saginaw Metal Casting Operations uses the cutting-edge lost foam casting technology to make engine blocks. ...

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