[HondaXRider]

I have a completely stock 400 and I know nothing about engines. I want to get it bored to something bigger. I don't race. Maybe in the future. I just joy ride and go on trails ever once in a while. I'm looking at hot rods cranks and I want the 460 stroker crank and the stage 3 hot cam. I dont k kw what kind of piston to get. Can someone help me? Are the 460's reliable if I'm not racing and really pushing it hard?

 

[retro]

Welcome to the forums! I can't help you, but hopefully someone will come along soon who can...

 

[SlammedRanger]

460ex is going to require alot of cooling mods. If your trail riding and trail ride like we do. Fairly slow paced. Stop and have a few beverages and watch crazy people climb hills. You are going to over heat that thing like crazy. I would suggest against the 460. I highly suggest you get ahold of a reputable engine machine shop for the bore+hone work. If they dont ask for the piston when they do the final bore turn and run! They dont know what they are doing. A good machinist will taylor make the piston fit the cylinder. I run wiseco. Alot of people like JE and CP pistons. Stay away from namura and niche IMO. My .02