Tobias: Directory enquiries effexor 225 mg dose As a quick reminder, the new Chevrolet Corvette Stingray is powered, in its two body styles, by the same 6.2 liter LT1 V8 engine, which is good for 455 HP (335 kW), at 6,000 rpm, and 623 Nm (460 lb-ft), available at 4,600 rpm. The Convertible is getting 450 HP (331 kW) at 6,000 rpm and 609 Nm of torque (450 lb-ft), at 4,600 rpm. The unit is mated to a seven-speed manual transmission with Active Rev Match, sending power to the rear-wheel drive.