Allardyce, 58, looks set to tie his future to the Irons with a contract extension which is likely to be finalised once the east London club are secure in their Barclays Premier League status again following an impressive return to England's elite.
However, Allardyce, whose side tackle champions-elect Manchester United at Upton Park Wednesday night, remains pragmatic about the ups and down of a football manager.
"There is another stint I am looking forward to here hopefully, which will get sorted out once we have made sure of our Premier League status, but beyond that I could get sacked in six months next season or less if results don't go our way and we start the season poorly, then I am more likely to get sacked than stay here for the period of the contract. That is life in football now," said the former Bolton, Newcastle and Blackburn manager, who took over when West Ham had been relegated in the summer of 2011 and got them back up at the first time of asking via the play-offs.
"If you accept it then you can deal with it.
"You are always making sure that you stave off putting yourself under that type of pressure by producing consistent and regular performances by the players, so when you are slipping towards a run of games where you can't get a win, you have to try to minimise as much as you can.
"The highs and lows are massive for a manager, you have got to be able to manage it and be big enough to deal with it.
"You strive to make sure you don't have too many lows and you have as many highs as you can. That is why you drive yourself and everybody else forward."
Allardyce continued: "Yet however well I have or haven't done, I am never satisfied. I want to do better. I am a pain in the arse to the owners, because I have never got enough money and I have never got enough players.
"That is just the way I am and sometimes perhaps they feel that's little bit difficult to live with, but that is me.
"It is me driving that ambition of myself and the club forward.
"It is why you do this job, you are in this job to win games of football that is the only thing you do it for."