What compatible engine will fit in my 2001 aurora?

The 2001 Oldsmobile Aurora originally came with either a 4.0L V8 engine or a 4.6L V8 engine, both of which are specific to the Aurora model. If you're looking for a compatible replacement, it's best to source an engine from another 2001 Aurora or from a similar model within the same generation (1995-2003). Additionally, you might consider the 4.0L engine from the Cadillac Seville, as it shares similar components. Always ensure compatibility with your vehicle's transmission and electronics when considering an engine swap.