Honda-SOHC

 as you all know i,m doing a 400-4 cafe/racer well the saga continues, one thing as you seen from does 4 liners etc Ive found a suppler that can do 54mm hi comp pistons Honda say don't bore out more than 1mm  but liners seem to have plenty of meat to out to 54mm this leaves the stepped land at the bottom with a 1.5mm sidewall, depending on what the chappie thats going to be gas flowing heads crank lightened balanced etc if doable would be a 458cc Joby also got clutch parts back and are better than Honda new cost a bit though and having a custom billet cover made for generator is so far