Isuzu Q engine

The Isuzu Q engine is a family of six-cylinder diesel engines, listed in the six-cylinder diesel table of the Wikipedia list of Isuzu engines. The 6QA1 has a bore of 125 mm, a stroke of 150 mm, a displacement of 11,044 cc and a rating of 220 PS. The 6QA2 is also rated at 220 PS and the 6QB2 at 230 PS, and the list gives no bore, stroke or displacement for those two. The overview of the list says that Isuzu engine designations carry a two-character prefix that gives the number of cylinders and the engine family. The list states no production dates or applications for the Q family.