Stage 4 RZR Head rzr this is a must have

this is a must have for your next build if planned on increased power levels

406" Valve Lift (mm) 10

Offset fin on both water and air sides of the core for rapid heat transfer

Experience the ultimate off-road performance with the Can-Am X3 Stage 3 Trail-Maxx Crate Engine

and turbo upgrades

Stage 4 RZR Head rzr this is a must haveStage 4 Big Valve REQUIRES CORE CYLINDER HEAD CNC Ported Runners & Chambers Bronze valve guides honed to precise tolerances Performance Newen 5 Angle Radius Valve seat profiles Surfaced to single digit Ra's Assembled and blueprinted Hardware Included: BC Intake and Exhaust (inconel) Valves BC Beehive Spring kit with chromoly retainers New Valve Seals New Valve Locks