R-2600-1 - 1,600 hp (1,194 kW) R-2600-3 - 1,600 hp (1,194 kW) R-2600-6 - 1,600 hp (1,194 kW) R-2600-8 - 1,700 hp (1,268 kW) R-2600-9 - 1,700 hp (1,268 kW) R-2600-12 - 1,700 hp (1,268 kW) R-2600-13 - 1,700 hp (1,268 kW) R-2600-19 - 1,600 hp (1,194 kW), 1,660 hp (1,237 kW) R-2600-20 - 1,700 hp (1,268 kW), 1,900 hp (1,420 kW) R-2600-22 - 1,900 hp (1,420 kW) R-2600-23 - 1,600 hp (1,194 kW) R-2600-29 - 1,700 hp (1,268 kW), 1,850 hp (1,380 kW) GR-2600-A5B - 1,500 hp (1,118 kW), 1,600 hp (1,194 kW), 1,700 hp (1,268 kW) GR-2600-A71 - 1,300 hp (969 kW) GR-2600-C14 - 1,750 hp (1,304 kW)