You can with a bit of machining fit KZ1000 liners (sleeves) in the 750 cylinders and as a result they should also fit in the 650's as well I'd guess. This vastly increases the cylinder thickness.
With stock 750 liners, boring out to 69mm for the 810 is fine despite them being a bit on the thin side.
Usually the KZ1000 liners are used for taking the displacement out to 880, 904 and beyond, if you can find some suitable pistons.:evil:
1991, Zephyr 750. GPz750 turbo engine, 810cc, Garrett T25 turbo, GPz1100 throttle bodies, 310cc injectors, Power commander, Dyna coils, Lots more as well...
KB Saturn fitted with a stock GPz750 turbo engine. Loads to do on this project.
