RZR Stage 4 Engine

Stage 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 (625+)

-Upgraded bearings

-Upgraded Head Gasket & O-ringed Jug 

-Upgraded timing chain tensioner 

All engines machined and assembled on site by true professionals of the industry with over 40 years combined experience.