sound like your motor spun a bearing. Does the oil look like it has sparkles in it?

that 98 motor is a direct fit.

all 97-03 GTP motors are direct fit.

its called a L67 motor

the N/A are called L36

and the 04+ are L26

The seires 2 motor is what you want and thats what the 98 motor is the seires 3 motors were 04+ cars.