Conrod Bearing - Big End Shells - Mitsubishi FTO V6 DE3A Help HERE and HERE or simply measure the crank diameter.
They WERE Sold in 3 different sizes shown in mm & Inches S1 42.995 to 43.000mm (1.6927165" to 1.6929134") S2 42.985 to 42.995mm (1.6923228" to 1.6927165") S3 42.980 to 42.985mm (1.692126" to 1.6923228") Mitsubishi Have Discontinued the Manufacture of these
So Only Option Now is Buy The Aftermarket Set of 6
or get an engine bearing company to make them as a one off set Mitsubishi Part Number S1 - MD312142 S2 - MD312143 S3 - MD312144