1. The mechanic found a crack in the engine block that was causing the oil leak.
2. The engine block was made of aluminum to reduce weight and improve performance.
3. The engine block was damaged beyond repair and needed to be replaced.
4. The engine block was designed to withstand high temperatures and pressure.
5. The engine block was painted black to match the rest of the car's exterior.
6. The engine block was removed from the car for a complete overhaul.
7. The engine block was cast from a single piece of metal for strength and durability.
8. The engine block was leaking coolant due to a faulty gasket.
9. The engine block was machined to precise specifications for optimal performance.
10. The engine block was stamped with the manufacturer's logo for authenticity.