Fox 35 Stunt

hello.
Anybody know where I could get a new or used in good condition a Cylinder Liner for Fox 35 Stunt?

Hello Alvaro, I'm a big Fox fan and Fox .35 user. Finding what you seek is somewhat difficult but not impossible. The reality is that finding another engine is probably cheaper than the parts your seeking. You would need the rod and wrist pin as well. Breaking in a new piston/cylinder on a used rod would not be my recommendation. While it would work it can be short lived. The other problem is that one needs to keep in mind that the parts are not CNC machined parts and fitting a new piston/cylinder to a old case can also prove slightly problematic. I've had to lap the cylinder itself into the case because it was just slightly too tight. Now most wouldn't recommend this because heat transfer comes from conductivity. The reality is that when the cylinder expands, it binds down on the piston and never comes up to it's fullest rpm's if forced into the case.

Of course this is a worst case scenario which can be resolved, I'm just letting your know if your unaware of the Fox tolerances. I just sold 3 Fox piston liners and I let them go for $45 a piece. While a new Fox won't be found at that price, used ones certainly do. In most situations, most Fox's aren't even fully broken in. Some of the versions I prefer is the 40th anniversary due to what I feel are some of the best fitted Fox .35's. The later 50th and 60th anniversary cases have the wider exhaust stack which is excellent for strengthening the case in this area to retain the muffler. Whereas the 40th anniversary utilizes very small ears on the casting. These can easily break in a ground strike due to the muffler.