PRO R Stage 3 N/A Cams polaris rzr Polaris Part Number 1205689

Polaris Part Number 1205689

BC valves are one piece design with a friction welded Stellite tip for the best possible performance

- Soda blasted restored appearance

Bronze Valve Guides for improved valve stem life

PRO R Stage 3 N/A Cams polaris rzr Polaris Part Number 1205689BC0983 Polaris Pro R (21 up) Stage 3 Normally Aspirated Race Spec (pair) Designed for modified engines. Requires BC valve spring kit, seals and guides for clearance due to high lift. Must run with aftermarket pistons with proper valve reliefs built in. Cannot be ran with stock OE pistons due to possible piston to valve contact. Adv Dur (. 020") 265 265 Dur @ . 050 240 240 Valve Lift (1: 1) . 450" . 450" Valve Lift (mm) 11. 43 11. 43