Yes, I'm in the US. I was comparing hp on the engines from the A series and this is what I found:
73 A12 69HP @ 6000 70 Torque @ 4000
74 A13 75HP @ 6000 77 Torque @ 3600
75 A14 78HP @ 6000 75 Torque @ 4000
76-78 A14 80HP @ 6000 83 Torque @ 3600
79-82 A14 65HP @ 5600 75 Torque @ 3600
79-82 A15 67HP @ 5200 80 Torque @ 3200
This is from a US Repair Manual. So you say it's not worth rebuilding it ? I already have it with A15 pistons in it