engine hoist capacity

[James Harwood <james.harwood@sbcglobal.net>]

The only way I can get my engine hoist to reach far
enough over the engine is to extend the boom to its
limit. The rated capacity for the extension is marked
as 1/2 ton.

Is this enough to cope with lifting the engine and
transmission out as a unit?

Thanks very much,
  James
74 MGB