ɪt wʌz bˈɪlt tə ɹᵻplˈeɪs ðə lˈɑːɹdʒɚ ænd hˈɛviɚ, jˈɛt mˈoːɹ pˈaʊɚfəl, dˈoʊk, fˈoːɹ vˈælvz pɜː sˈɪlɪndɚ, nˈætʃɚɹəli ˈæspɚɹˌeɪɾᵻd, sˈɪks.zˈiəɹoʊ ˈɛl ˈɛm wˈʌnhˈʌndɹɪd twˈɛnti vˈiː twˈɛlv jˈuːnɪt.
It was built to replace the larger and heavier, yet more powerful, DOHC, four valves per cylinder, naturally aspirated, 6.0 L M120 V12 unit.