The Hyundai Beta engine is a 1.6 L to 2.0 L straight-4 built in Ulsan, South Korea. All Beta engines are DOHC designs. ==1.6== The G4GR (also called the 1.6 D) is a 1.6 L (1599 cc) DOHC engine. Output is 116 hp (85 kW) at 6000 rpm and 106 lb·ft (143 Nm) at 4900 rpm. The engine`s bore is 77.4 mm and its stroke is 85 mm. ==1.8== The G4GM (also cal....