Before installing the engine, replace: gaskets (valve cover gasket, oil pan gasket – most important ones), fluids, seals, filters, spark plugs, belts, aluminum bolts (the ones holding valve cover, oil pan, etc.). These are consumables. You MUST service the engine to keep the warranty active.
Any aftermarket or performance parts or software present on the car voids the warranty.
Engine components such as timing chain, VVT gears (Vanos, VTEC, etc.), vacuum pumps, chain guides are not covered.
Any accessories (alternator, power steering pump, a/c compressor, etc.) left on the engine for installation convenience only. Accessories are not under warranty. That is your own risk and responsibility of reusing them.
Engine overheat, low crankshaft oil level or oil starvation voids the warranty.
Perform all the works with a licensed, ASE-certified mechanic shop or dealership - is a MUST. If not – warranty voids.