Motor
HP/kW
Objem
Rok výroby
Kód motoru
Series I, Series II, Series III 6.3
340 hp
250 kw
6277 ccm
01-1969 .. 06-1973
RB-383
Series IV, Series V 6.6
268 hp
197 kw
6551 ccm
06-1973 .. 06-1976
RB-400