I know it will depend from company to company and possible from area to area but would you expect to pay for A; A re-bore with new pistons and B; A
reground crank and shells on a 1300 A series engine.
[Edited on 17/8/17 by LBMEFM]
Personally I source my own bearings and pistons, gives me the choice of manufacturer not just who the machine shop prefer.
Boring is usually @ £30 a pot, so 120 for a 4.
Journal grinding @ £15 a journal.
[Edited on 16/8/17 by r1_pete]
Thanks Pete