hp (172 kW) and 330 ft·lbf (447 N·m). It was standard on all 1985-1991 Corvettes (rated at 230-250 hp and 330-350ft·lbf torque). Optional on 87-92 Chevrolet Camaro & Pontiac Firebird models (rated at 225-245 hp and 330-345ft·lbf torque) 1987 versions had 10 hp (7.5 kW) and 15 ft·lbf (20 N·m) more thanks