LGA 1366 Delid tool $50
It seems like a hefty price for something so old and you should also read this thread.
Delidding 1366 CPUs [Soldered]
4-5 years ago I tried that and well... it didn't end well.
https://www.techpowerup.com/forums/threads/delidding-1366-cpus-soldered.260485/reply