Hyundai Sirius engine

The Hyundai Sirius was the company's first larger inline-four engine, with displacements from 1.795 to 2.351 litres. It was a licence-built Mitsubishi design and is no longer used by Hyundai. The 1.5-litre G4DJ was made from 1989 to 1995 and was essentially a copy of the eight-valve version of Mitsubishi's 4G15. The G4CL added double overhead camshafts, and the 1.6-litre G4CR, a copy of the Mitsubishi 4G61, was introduced in the first-generation Elantra. The 1.8-litre G4CM shared its 88 mm stroke with the Mitsubishi 4G67. The Sirius engines powered the first-generation Elantra, the Scoupe and the Excel or Pony, so the family marks Hyundai's step from imported designs toward its own engines.