Toyota RZ engine

The Toyota RZ engine family is a straight-four piston engine series built in Japan. It uses a cast-iron engine block with aluminium SOHC or DOHC cylinder heads, electronic fuel injection, two or four valves per cylinder and forged steel connecting rods. The 1RZ is a 2.0 litre (1,998 cc) version built from 1989, with an 86 mm bore and stroke; the original carburetted Japanese model makes 100 PS, and the fuel-injected 1RZ-E makes 110 PS at 5,200 rpm. The 2RZ is a 2.4 litre (2,438 cc) version with a 95 mm bore and an 86 mm stroke, available with several combinations of heads and fuel delivery, and the 2RZ-E is an SOHC unit with two valves per cylinder that is known for vibration because it lacks balance shafts. It was used in the HiAce, the Hilux and the Kijang.