As of the 2010 season, the Yankees team record for strikeouts by a pitcher in a season is 248 by Ron Guidry in 1978.
Nolan Ryan with 383 (modern record - in the 1800s teams only had one pitcher and some of those guys had 500+ strikeouts per season)
Through the 2008 season: Batter: Alfonso Soriano with 157 strikeouts in 2002. Pitcher: Ron Guidry with 248 strikeouts in 1978.
Matt Kilroy holds the record for most strikeouts by a pitcher in a single season with 513 in 1886. Nolan Ryan holds the modern day record with 383 in 1973.
Mickey Lolich with 308 in 1971.
As of the 2008 season, that is Ferguson Jenkins who struck out 274 batters in 1970.
For the 2007 season, Jake Peavy of the San Diego Padres led all MLB pitchers in strikeouts with 240.
Johan Santana with 265 strikeouts in 2004.
Sandy Koufax with 382 strikeouts in 1965.
Jim edmonds 167 strikeouts
actually Charles radbourn had 441 strikeouts but they still don't count that season there for nolan Ryan holds the record with 383 strikeouts