Five different inline six engine options were offered to customers. Four of these were variants of the 4.0 L Speed Six making different amounts of power and torque, depending on the trim level selected. The last was a 3.6 L Speed Six which produced the same amount of power as the lowest-level 4.0 L engine, although slightly less torque.
- Bore and stroke: 96 mm by 92 mm (4.0 L) or 96 mm by 83 mm (3.6 L)
- Power and torque:
- TVR Tuscan: 360 hp (268.5 kW), 310 ft.lbf (420.3 Nm)
- TVR Tuscan Red Rose: 380 hp (283.4 kW), 310 ft.lbf (420.3 Nm)
- TVR Tuscan S (pre-2003): 390 hp (290.8 kW), 310 ft.lbf (420.3 Nm)
- TVR Tuscan S (post-2003): 400 hp (298.3 kW), 315 ft.lbf (427.1 Nm)
- 3.6 L: 350 hp (261 kW), 290 ft.lbf (393.2 Nm)
Five different inline six engine options were offered to customers. Four of these were variants of the 4.0 L Speed Six making different amounts of power and torque, depending on the trim level selected. The last was a 3.6 L Speed Six which produced the same amount of power as the lowest-level 4.0 L engine, although slightly less torque.
