Tri Z Cylinder Bore Max

[ama009]

Hey guys, I have a Tri z Cylinder bore that has already been bored. What is the most these cylinders can be bored? If I remember correctly, the manual says the 4th bore size is 69.00mm? Is that the most or is it determined by piston size and availability? THanks!

[rockinrod80]

I know you can bore them out to 70mm, because that is what mine is bored to. that makes it .080 over and i think that is the most you can go, than its time for a resleeve

[Bryan Raffa]

as said 70 mm.. they run good ported!

[ama009]

Thanks guys! Do you port them yourself Bryan?

[Bryan Raffa]

ya I have .. just had Jason Hall do a few..Flotec does it ,,