▁engines , ▁is ▁referred ▁to ▁as ▁a ▁" t unnel ▁bore " ▁block . ▁It ▁was ▁also ▁used ▁in ▁the ▁May bach ▁MD 8 7 0 ▁dies el ▁engine . ▁ ▁B MW ▁Marine ▁designed ▁and ▁manufact ured ▁thousands ▁of ▁special ▁marine ▁parts ▁for ▁the ▁VM ▁tunnel ▁bore ▁blocks . ▁These ▁tur bo charg ed ▁engines ▁became ▁B MW ▁Marine ' s ▁D ▁ 1 5 0 ▁W ▁and ▁D ▁ 1 5 0 ▁Z ▁models , ▁output ting ▁ 1 3 6 ▁H P . ▁A ▁ 1 6 5 ▁H P ▁tur bo charg ed ▁and ▁inter co o led ▁D ▁ 1 9 0 ▁was ▁also ▁available . ▁The ▁D ▁ 1 5 0 ▁and ▁D 1 9 0 ▁dies el ▁engines ▁were ▁sold ▁with ▁either ▁a ▁Hur th ▁ 3 6 0 ▁transmission ▁for ▁in board ▁installation ▁or ▁the ▁B MW ▁Z - D rive ▁for ▁stern ▁drive ▁applications . ▁The ▁D 1 9 0 ▁was ▁later ▁re - engine ered , ▁and ▁with ▁a ▁modified ▁Mark ▁II ▁Z - D rive , ▁was ▁sold ▁as ▁the ▁B MW ▁D ▁ 6 3 6 ▁Z ▁with ▁ 1 8 0 ▁H P . ▁Following ▁this , ▁a ▁five - cy l inder ▁ 3 . 0 - lit re ▁version ▁of ▁the ▁ 3 . 6 - lit re ▁six ▁was ▁offered ▁as ▁the ▁B MW ▁D ▁ 5 3 0 . ▁In ▁England , ▁Fair line ▁and ▁Pl anc raft ▁offered ▁their ▁products ▁with ▁B MW ▁Power .