The Washington Post Û¢ Û¢ Û¢ Friday, April 11, 1986 B9  
of Navistar International Corp. stock totaling more than 48 million shares traded on the New York Stock Exchange today, dwarfing all other big trades ever handled in the United States.</br></br>An exchange spokeswoman said the Navistar block of 48,788,800 shares set an NYSE record in both volume and value. Each Navistar share fetched $10, bringing the total value of the transaction to $487.9 million.</br></br>Navistar formerly was known as International Harvester Co. but changed its name after selling its farm-equipment operations to concentrate on producing big trucks.</br></br>The previous record NYSE block trade occurred on June 21, 1984, when a 10-million-share chunk of Superior Oil Co. stock sold for $42,375 a share, or $423.75 million. It was bought by Mobil Corp. as part of MobilÛªs $5.7 billion acquisition of Superior.</br></br>NEW YORK, April 10ÛÓThe stock market pushed ahead for the third straight session today, aided by hopes for still-lower interest rates.