13. Check the crankshaft end play.
Refer to: Specifications (303-01C Engine - 5.0L 32V Ti-VCT/5.0L Ti-VCT V8 (308kW/418PS), Specifications). Check that crankshaft torque-to-turn does not exceed 6 Nm (53 lb-in). Check the piston-to-cylinder block and piston ring clearances. Refer to: Specifications (303-01C Engine - 5.0L 32V Ti-VCT/5.0L Ti-VCT V8 (308kW/418PS), Specifications). Assemble the pistons and position the piston ring gaps. Refer to: Piston (303-01C Engine - 5.0L 32V Ti-VCT/5.0L Ti-VCT V8 (308kW/418PS), Disassembly and Assembly of Subassemblies).
14. Lubricate with clean engine oil and install the connecting rod bearings. Material : Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor Oil (U.S.) / XO-5W20-QSP (U.S.) (WSS-M2C945-A)
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.