570 Big Bore
Polaris 2012-2021 570 625cc Big Bore Performance Top End
complete 625cc Big Bore (105mm) Performance top end rebuild kit
Complete upgraded top end performance big bore kit.
Includes a forged Wossner piston, 105mm big bore (nickel plated) Cylinder, and all the top end gaskets needed to build your 570 into a beast!
This kit will immensely improve horsepower 20%+ over stock.
Easy to install kit
This listing includes the following parts:
– Nickel plated big bore cylinder
– Forged 105mm Wossner piston kit
– Complete big bore top end gasket kit
– High temp valve stem seals
Contact us if you have any questions!