Please find below the report from the assessment by another engineer: When inspecting the engine on the Kia Sportage (2010 model- automatic) we found the following: Big end bearings failure on number 2,3 and 4 cylinders The cause was due to loss of oil pressure. The crankshaft needs to be grinded to the next available under size. The cylinder head needs to be serviced and valve stem seals and cam bearing replaced 3con rods also needs replacing.