Stock head milled .065 and squish recut. Adds great punch to the motor. This was installed for 5 years and worked very well.
Xtreme Polaris milled their heads .100 on their RMX kit, so this is conservative and the absolute cheapest way to give your machine some snap. A head can be changed in a half hour.
$85, local pickup only.
Xtreme Polaris milled their heads .100 on their RMX kit, so this is conservative and the absolute cheapest way to give your machine some snap. A head can be changed in a half hour.
$85, local pickup only.