Have new seals for the lift arm and am looking for suggestions on loosening the cylinder head. Resealed the other side last year and needed a 4 foot pipe wrench with an 8 foot pipe on the handle in order to break it loose (even after heating with a torch). Because it is aluminum, it cost $200 to get a new one. Should I just go ahead and get a new head or is there a trick to breaking them loose?