That's OIL pressure!!
I agree. These motors seem really really durable. Mine has 153k, and runs really well, doesn't leak, or knock, or burn any oil. I think the bottom end is pretty strong, and will last a while. Although if you have the money, and you want to rebuild it, it might not be a bad idea.As long as it maintains good compression and oil pressure the motor is fine. Theres no reason you cant go 200+.