Chris Hogg wrote:
I'm looking for a small sheaved pulley system with maybe two or three
pulleys per sheave (if those are the right terms), capable of lifting
a max of say 250 kg. I guess the sort of thing used for lifting engine
blocks out of cars would be OK. Anyone point me to a supplier?


Yacht places (ships chandlers) or a decent hardware shop are the best bet.

beware of the '1 ton rating' - we DID lift an engine out with these
years ago, ..actually we lifted the front of the car as well till be got
it freed, and our 5 ton block bent alarmingly at about a ton and a half.
Didn't break though..