will this be ok

[ebo 4356]

will this piston kit be good for my stock engine. WISECO 400EX PISTON KIT 10:1 STD 85.00mm, and will it fit. Also what kind of power gains will i gain or if any. Thanks

[trx400EXtreme]

yes it will fit. there will probably be gains, can you feel them? maybe, maybe not. depends on how old your motor is. since it is an 02, you might. just a suggestion though, (i had this told to me), since its an 02, it might not be a bad idea to go ahead and bring it up to 86.00mm. your cylinder wall is very worn by now and just honing it is ok, but to get it completely clean, you may have to go a bit bigger. you dont have to do that, but why not get some more power.:devil:

[ebo 4356]

yea i was debateing, or should i get the 11:1 would that be better.

[ebo 4356]

yea i was debateing about that, or should i get the 11:1 would that be any better.

[03trx400]

11:1 is the highest you can go and run pump gas..so if you're looking for power you might as well go as high as you can. trx400EXtreme is right about the boring though...you're going to have the engine all apart anyway..it isnt much for a bore and you wont have to take it back apart for alot longer.

[honda8&3]

You will feel a power gain. The Wiseco Pro-Lite piston is noticably lighter than stock.:macho

[ebo 4356]

or should i just order the stock kit that comes with a whole top end kit for 100 bucks.

[honda8&3]

Nah Wiseco is lighter and stronger. Get the wiseco top end kit, a little more expensive but worth it IMO:macho

with the 10:1 wiseco you will feel the gains, the quad will pull stronger because the piston is lighter so you get quicker revs and the 10:1 will up your compression. My brother had it and you could really feel the gains