Engine, 3.1L (191 cu in) V6, multiport fuel injection

Wikipedia's Regal engine list and its 60° V6 article give LH0 to the Regal and date every year; 1990 from those Wikipedia articles (the listed 1990 kit page that prints LHO, p.41, carries only an issue date in the model-year field, so it is not cited; the 1991 p.73 and 1992 p.55 weight pages are likewise not cited); 1992 also from the 1992 power teams page (p.6), which prints model year 1992 and LHO (letter O) twice on its engine code line; 1989 is left out because those articles start it in 1989 while the 1989 entry of engine-build.com's Regal table gives only the LB6 (see the report gaps); the kits print LHO (letter O); shared W-body code; cited from the Chevrolet Lumina kit