No Stick Pusher - only Stick Shaker. Stick Pushers were primarily installed in high tail airplanes like the VC10, BAC 1-11 (not sure about 727).... because they suffered deep stalls (super stalls) which rendered the stabilisers ineffective at the stall & could be unrecoverable. This is because at high angles of attack the high tail would sit in the turbulent flow of the wing and be aerodynamically useless. The purpose of the stick pusher was to prevent this from occurring by producing a forward pressure on the elevators during the approach to stall, before this condition was reached.
The 747-400 - not being a high tail - does not suffer the deep stall, and so has no need for a stick pusher.