ðiːz ˈɛndʒɪnz ɑːɹ jˈuːnɪt kənstɹˈʌkʃən, ɐlˈaʊɪŋ fɔːɹ tɹɐdˈɪʃənəl mˈʌltaɪspˈiːd tɹænsmˈɪʃənz, ænd mˈeɪ fˈiːtʃɚɹ ˈiːðɚɹ ɐ sˈɛmaɪˈɔːɾoʊ ɔːɹ fˈʊli mˈænjuːəl tɹænsmˈɪʃən.
These engines are Unit construction, allowing for traditional multi-speed transmissions, and may feature either a semi-auto or fully manual transmission.