1980-1982 Chevrolet Impala 5.7L V8 DIESEL. 1982 Chevrolet Impala 5.7L V8 DIESEL. 1983-1985 Chevrolet Impala 5.7L V8 DIESEL. Notes: Engine Water Pump. Warranty Coverage Policy. Vehicle Engine. Fit Notes: Without A.C.; With 5.95" from block to pulley surface.