
PAW installed the ATR head. They stripped it down completely, replaced a couple of bent valves & had all the valve seats re-cut, re-ground the cams as there was some ware on them, gave the head a good boil to get all the gunk out & had it skimmed. They then built it back up and replaced all the seals and gaskets on then way.
I did look at swapping the components over, but with the need to swap the a7 springs in too as they're stiffer to cope with the bigger cams there wasn't much to be saved plus I then had a head which was factory ported & polished
