Question about brand of piston

[87-uki]

I am looking to purchase a new piston for my wifes 400ex and am wandering if anyone has had experience with a

Honda 400EX Namura Tech. Std Bore Piston/Gasket Set Kit

Also what is the stock compression ratio on a 2000 400ex.

Thanks for any information that can be supplied.

[440exnacsracer]

havent heard anything about them, but the way i look at it, go ahead and spend the extra money on a wiseco, the piston is perhaps the most vital part in your engine, and can cause the most damage from a failure. i believe 400's have a stock compression ratio of 10.5:1,

[gojk]

Stock is like 9.2:1 or 9.3:1

[cals400ex]

400ex stock is 9.1:1

[400rednEX]

stock is 9.1:1, je is a really good quality piston

[blue416ex]

do yourself a favor and spend the extra 100 on a JE or Ross pistopn and xr400 top end gasket kit it will slightly raise your compression and make it a little better and with the JE and Ross pistons you can get a diff compression ratio piston if you would like the extra compression;)

[RiderTRX400ex]

I dont know if u guys have had any experience or even heard of Niks Pro-X pistons, but i got one in mine and its been great. I personally dont like wiseco, but that my opinion... blues right too... JE and Ross pistons are great too..

[87-uki]

thanks so much to everyone for their input.

I have decided to go with the JE or Wiseco,

Again thanks!

[foster]

Ask Mark Schout

[foster]

Mark Schaut

814-512-1672

[bpimpdaddy21]

Last I checked Wiseco and JE are made by the same manufacturer, I believe Wiseco makes JE, or vise versa. I have never had a problem with Wiseco.

[440exnacsracer]

^^ yes, wiseco owns JE now