In the name of God, the Most Gracious, the Most Merciful. Peace, mercy, and blessings of God be upon you. Dear visitors of Haraj website, we have Maserati engines available with a 5-month warranty. We also offer refurbishment for factory engines with the same 5-month warranty, which includes fixing the manufacturing defect in the timing chain. One of the reasons for timing chain wear, which can cause variations in timing chain weight, is the oil pores in the cylinder and the oil pump pressure, which can lead to ticking or rattling sounds. This is treated by widening the oil pores through the cylinder, changing the high-pressure oil pump, balancing the timing chain on the lathe, and professionally and meticulously securing the chain. The engine gasket set is completely changed (pistons, rings, connecting rods, timing chains, and gasket set). External accessories are checked for free, and the customer is informed about them. Thank you.