RZR Stage 4 Engine polaris rzr 5mm) are optional

5mm) are optional

Tune for increased boost

Ignite your passion for off-road excellence with the Stage 3 Trail-Maxx Crate Engine

-Crown (Thermal) and Skirt (Anti-Friction) coatings come standard

Superior Strength and Durability: The Stage 3 Trail-Maxx Crate Engine includes a range of enhancements to maximize strength and reliability

RZR Stage 4 Engine polaris rzr 5mm) are optionalStage 4 is our top tier crate engine for big turbo applications aiming to make over 300whp reliably. BC Stroker crank, big port CNC head, and more focus on head clamping with ARP 625+ studs and dowels added to top and bottom of the cylinder. Forged Pistons (big bore), rods and billet crankshaft. (72. 5mm stroke) Upgraded Valvetrain Startup warranty Performance Valve Job, CNC ported BIG Port. Line bored and dowel pinned crankcase Upgraded ARP Studs