PRO R

AR8692 - Polaris Pro R 2.0L (20-up) ARP2000 Head Stud Kit

Made from ARP2000 material and rated to 220,000 psi, ARP cylinder head studs not only offer super...

Made 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.

BC0900D-2 - Polaris Pro-R (21-up) Dual Spring/Steel Retainer/Seat Kit

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium chromoly steel alloy for "set it and forget it" wear characteristics. Also requires BC3991 valve stem seals. Type BC1902 Single Free Length 1.610" Seat 1.265" @ 90 lbs Open 0.850" @ 233 lbs Coil Bind 0.770" Retainer BC2902 Spring Seat BC2912 ...

BC0900SX-2 - Polaris Pro-R Beehive Spring/Steel Retainer/Seal Kit w/o Seat

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium chromoly steel alloy for "set it and forget it" wear characteristics. Beehive spring keeps retainer lightweight. Also includes BC3991-2 valve stem seals. Type BC1900-2 Single Free Length 1.610" Seat 1.265" @ 83 lbs Open 0.850" @ 197 lbs Coil Bind ...

BC0987 - Polaris Pro R (21-up) Non Stroker Kit 73.5mm w/BC ProH2K Rods

Polaris Pro R - Includes 4340 billet crank, 73.5mm stroke, BC ProH2K rods (4.915" c-to-c), shelf ...

Polaris Pro R - Includes 4340 billet crank, 73.5mm stroke, BC ProH2K rods (4.915" c-to-c), shelf CP or BME pistons (choice of bore/compression). Stock stroke rotating assembly. Crank # BC5916 - 73.5mm  Rod # BC6915 - 4.915" Piston # BME or CP - Shelf

BC0989 - Polaris Pro R (21-up) LW Stroker Kit 78mm w/BC ProH2K Rods

Polaris Pro R - Includes 4340 billet crank, 78mm stroke, BC ProH2K rods (4.915" c-to-c), custom C...

Polaris Pro R - Includes 4340 billet crank, 78mm stroke, BC ProH2K rods (4.915" c-to-c), custom CP or BME pistons (choice of bore/compression). 93mm bore = 2.13L, 94mm = 2.165L, 96mm = 2.26L Crank # BC5917 - 78mm  Rod # BC6915 - 4.915" Piston # BC7915 - Custom

BC3800-2 - Polaris Pro-R (21-up) Stainless Steel Intake Valves - 37.8mm (STD)

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

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finis...

BC3802-2 - Polaris Pro R (21-up) Stainless Steel Intake Valves - 38.8mm (+1mm)

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

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finis...

BC3803N-2 - Polaris Pro R (21-up) Inconel Exhaust Valves - 30.2mm (+1mm)

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

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant Inconel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finish under ...

BC3965E-2 - Polaris Pro R Fury 2.0L Exhaust Valve Guides (BC Design)

BC premium valves guides are made from Manganese Silicon Aluminum Bronze alloy and CNC machined t...

BC premium valves guides are made from Manganese Silicon Aluminum Bronze alloy and CNC machined to exacting tolerances. Threaded tip to prevent valve seals from popping off. BC guides are resistant to cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and rpm's. The perfect replacement to worn or damaged guides and 100% compatible with BC's lineup of stainless steel valves.

BC3966-2 - Polaris Pro R Fury 2.0L Valve Guides

5.5mm Stem Diameter fits both Intake and Exhaust - BC premium valve guides feature a threaded end...

5.5mm Stem Diameter fits both Intake and Exhaust - BC premium valve guides feature a threaded end where the valve stem seal goes, virtually eliminating the seal popping off at extended rpm's. Made from Manganese Silicon Aluminum Bronze alloy and CNC machined to exacting tolerances. BC guides are resistant to cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and rpm's. The perfect replacement to worn or damaged guides and 100% com...

BC3991-2 - Polaris Pro R Fury 2.0L Valve Stem Seat/Seals Designed for Stock Top Hat Seat

BC valve stem seals are designed for OEM Polaris (stock) top hat style seat. Integrated seat/seal...

BC valve stem seals are designed for OEM Polaris (stock) top hat style seat. Integrated seat/seal for OEM valve guides when using stock or BC spring/retainer if running stock cams or cams under.430" lift. The seals allow a carefully defined amount of engine oil from the cylinder head into the combustion chamber—to lubricate the rotating valve stem in the valve guide. BC valve stem seals are produced from high performance materials for increased part life and lower wear.

BC5916 - Polaris Pro R (22-up) Stock Stroke Crankshaft 73.5mm

73.5mm Pro R Stock Stroke - CNC machined from 4340 billet round bar. All cranks are stress reliev...

73.5mm Pro R Stock Stroke - CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods.  Stroke 73.5mm Rod Journal 45mm Main Journal 52mm Weight 34 Lbs

BC5917LW - Polaris Pro R (22-up) 78mm LightWeight Stroke Crankshaft

78mm Pro R Stroker Crank - LightWeight design with four  counterweights removed for normally aspi...

78mm Pro R Stroker Crank - LightWeight design with four  counterweights removed for normally aspirated applications. CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods.  Stroke 78mm Rod Journal 45mm Main Journal 52mm Weight 29 L...

BC6916 - Polaris Pro-R (21-up) Pro625+ Connecting Rods w/ARP625+ Fasteners

Polaris Pro-R - Pro625+ w/ ARP2000 Fasteners. Made from aerospace grade, 4340 chromoly steel, BC ...

Polaris Pro-R - Pro625+ w/ ARP2000 Fasteners. Made from aerospace grade, 4340 chromoly steel, BC high performance connecting rods deliver the reliability required for high rpm applications. Every rod is CNC machined, micropolished surface finish treatment, equipped with Aluminum/Silicone/Bronze pin bushings and finish honed to exacting tolerances. C-to-C 4.915" BE Bore 1.8898" BE Width 0.955" PE Bore 0.866" PE Width 0.955" Gram Wt 581 Torque Specs 50 ft lbs - 3/8"

BC8287 - Polaris RZR Pro-R (93.5mm x .088”) Cometic Head Gasket

93.5mm cyl bore, .088” Thickness - Cometic 5 layer gaskets for the RZR Pro-R 4 cylinder combine a...

93.5mm cyl bore, .088” Thickness - Cometic 5 layer gaskets for the RZR Pro-R 4 cylinder combine advanced materials with state-of-the-art manufacturing processes to provide custom-tailored solutions to meet the needs of each individual application. The MLX head gasket is comprised of a three layer setup - Viton coated embossed spring steel outer layers surround a steel inner layer that provides support and thickness to the gasket. Embossments on the gasket allow for a proper seal around oil an...

BC8289 - Polaris RZR Pro-R (93.5mm x .052”) Cometic Head Gasket

93.5mm cyl bore, .052” Thickness - Cometic 5 layer gaskets for the RZR Pro-R 4 cylinder combine a...

93.5mm cyl bore, .052” Thickness - Cometic 5 layer gaskets for the RZR Pro-R 4 cylinder combine advanced materials with state-of-the-art manufacturing processes to provide custom-tailored solutions to meet the needs of each individual application. The MLX head gasket is comprised of a three layer setup - Viton coated embossed spring steel outer layers surround a steel inner layer that provides support and thickness to the gasket. Embossments on the gasket allow for a proper seal around oil an...

BC8880DLC-2 - Polaris Pro R/SlingShot Cam Bucket Followers w/DLC Coating

Features DLC (Diamond Like Carbon) surface treatment for improved wear characteristics. Made from...

Features DLC (Diamond Like Carbon) surface treatment for improved wear characteristics. Made from aerospace grade, 4140 chromoly steel alloy and completely CNC machined from heat-treated billet round bar. Heavy-duty wall thickness eliminates distortion and cam face depression, while reducing overall weight from non-critical stress areas. Nitrided and polished to a surface hardness of 60RC for minimal wear. Provides lower friction with cam lobes and cylinder head lifter bores for improved dura...

CP9102 - Polaris Pro R / SlingShot CP Shelf Pistons w/All Hardware - 93mm x 10.5:1

Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. ...

Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. Our Engineering department started off analyzing the competition, gathering industry data and deciding to make the highest level of pistons, period. The heart and soul of our pistons are built through our Engineering Department and its resources. This department is made up of several factors that push them ahead of the competition; Reverse Engineering, Design Experience and Flexibility, Analysis a...

CP9104 - Polaris Pro R / SlingShot CP Shelf Pistons w/All Hardware - 93mm x 13:1

Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. ...

Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. Our Engineering department started off analyzing the competition, gathering industry data and deciding to make the highest level of pistons, period. The heart and soul of our pistons are built through our Engineering Department and its resources. This department is made up of several factors that push them ahead of the competition; Reverse Engineering, Design Experience and Flexibility, Analysis a...

BC0981 - Polaris Pro R (21-up) Stage 2 Drop-In Camshafts (pair)

All purpose level spec, works with factory valve springs. Delivers excellent throttle response ou...

All purpose level spec, works with factory valve springs. Delivers excellent throttle response out of the turns or wash but still pulls on the straights. Adv Dur (.020") 258°/258° Dur @ .050 230°/230° Valve Lift (1:1) .420"/.420" Valve Lift (mm) 10.67/10.67

BC0982 - Polaris Pro R (21-up) Stage 2+ Duner Camshafts (pair)

More aggressive than the Stage 2 but still works with factory valve springs. Pulls hard up throug...

More aggressive than the Stage 2 but still works with factory valve springs. Pulls hard up through 9500 rpm but still delivers power on demand on the low end. ECU flash or tune recommended. Adv Dur (.020") 260°/262° Dur @ .050 240°/240° Valve Lift (1:1) .430"/.430" Valve Lift (mm) 10.92/10.92

BC0983T - Polaris Pro R (21-up) Stage 3 Forced Induction Spec (pair)

Big lift with short duration focuses on building cylinder pressure on boosted applications. Requi...

Big lift with short duration focuses on building cylinder pressure on boosted applications. Requires BC spring/retainer kit. ECU and CNC cylinder head with oversize valves will deliver big gain in performance. Due to high lobe lift, it is mandatory that you change the valve guides and use BC valve seals. Failure to do so will result in retainer to guide contact causing damage to the head and/or cams. Adv Dur (.020") 265°/262° Dur @ .050 240°/234° Valve Lift (1:1) .450"/.436" Valve Li...

BC3801N-2 - Polaris Pro-R (21-up) Inconel Exhaust Valves - 29.2mm (STD)

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

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, extreme heat resistant Inconel NCF751 alloy or Inconel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and feature...

BC9991 - Polaris Cam Timing & Cylinder Holding Tool

This new 2 for 1 tool from BC functions as a camshaft timing plate for both the Polaris RZR XP Se...

This new 2 for 1 tool from BC functions as a camshaft timing plate for both the Polaris RZR XP Series (XPT, XP1000, XP900) and the Pro R cylinder heads as well as a cylinder hold down tool for the Polaris RZR XP's during engine assembly. The steel inserts are designed to hold the camshafts snuggly in place at TDC, unlike the aluminum sheet versions out there that flex or bend causing the camshafts to seize in the head. The rigidity also makes it much easier to set valve lash and install the c...