***Please send your head in with valves assembled

two pistons

20-80-180 - Yellow spring

in the original packaging

and side bolts

Heavy Duty Head Studs / ProR Category_Default Category/SXS/Polaris RZR/RZR TURBOR 22+ ***Please send your head inMade from ARP2000 material and rated to 220,000 psi, ARP cylinder head studs not only offer superior clamp loads over cylinder head bolts, they provide proper alignment of the head and gasket with more accurate and consistent torque loading. Bolts will actually twist while torquing to proper spec, greatly reducing their ability to hold true. Heavy duty ARP head studs for RZR ProR Needed when adding a big bore or turbo Includes: studs, washers, nuts,