Big Bore Kit 82mm / 800 RZR/Ranger

SKU: 12-303
Regular price $1,295.95 USD
Select Year
Cylinder Core Exchange Option
TERMS OF CYLINDER EXCHANGE REFUND

Increase your horsepower and torque with this big bore kit from BMP! We bore out your stock cylinders to 82mm, and send you on your way with a Cometic gasket kit. The extremely high-quality forged Wossner pistons are available in a 10.5:1 pump gas compression ratio. This is an exchange cylinder program, however, you may purchase the kit outright for only $600 extra!

Head porting, high-performance cam, performance exhaust, power commander, and clutching are recommended options. You can run the big bore cylinder on a 100% stock setup, but it will run a little on the lean side. Since dirt ingestion is the #1 cause of motor problems in the RZR 800, we recommend our high-flow intake kit.

Please fill out our WORK ORDER FORM and send engine work to:


Bikeman Performance
920 Pine Street
Saint Croix Falls, WI 54024



Watch the video below for proper engine break-in protocol: