Originally Posted by cibergypsy

Yesterday I went to my dealer and got these quotes (numbers approximate as I didn't write them down exactly and are what I remember): 996 GT3 new motor is $60k plus change, remanufactured is $38k plus change. 997 GT3 up to 2010 is $58k plus change new and $37k remanufafured plus change. The X51 motor on my 2006 Carrera S would run $19k plus change remanufactured with a $22k core charge or $41k + without core. In my case, I can get the engine from the dealer for $16,800 remanufactured, with the applicable core, so I'm keeping my 997 for the time being. All motors eventually die so, for a lot less than any GT3 motor would cost, I can get the car running again in the distant future - I hope very distant - if I still own it.

What surprised me is that a sans-core X51 Carrera S motor costs over $40k! Hopefully, if it ever came to that, my motor can be used as core. Otherwise...