Can the motor from a 1997 Eagle Talon TSi fit into dodge avenager?

No, a 1997 Eagle Talon TSi's motor will not fit into a Dodge Avenger without significant, and likely impractical, modifications. The engine bays are completely different sizes and designs. The Talon TSi used a transversely mounted (across the engine bay) engine, whereas the Avenger uses a longitudinally mounted (lengthwise) engine. Even if you could somehow fit the engine in, the subframes, mounts, drivetrain, and various other components wouldn't be compatible. The project would be incredibly complex and expensive, far exceeding the value of either vehicle.