| CAMSVALVE TRAINRODSPISTONSSTROKER KITSCRANKSGASKETS / STUDS |
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POLARIS PRO R STROKER KITS
The BC stroker kit for the Pro R engine platform incorporates a 78mm (+4.5mm) stroke in the OEM 4 cylinder design. Depending on bore size that you decide, the BC kit will take you up to a 2130cc with stock 93mm bore or a whopping 2261cc with the big bore 96mm configuration. As usual, each BC kit features your choice of custom CP or BME aluminum forged pistons, 5100 series wrist pins (9310 pins available upon request for big HP applications), locks and complete ring pack. Available in any desired bore and compression ratio.
- BC 4340 steel billet crankshaft (78mm stroke).
- BC 4340 steel ProH2K or Pro625+ connecting rods.
- CP or BME aluminum forged pistons (any bore size, any compression ratio).
- 5100 Series carbon steel alloy wrist pins. 9310 Series pin upgrade available.
- Ductile iron plasma top rings, tapered second ring, low tension oil rings.
- Fully system balanced and ready to install. (50% deposit required)
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| Stock Specification RZR Pro R 93mm Bore x 73.5mm Stroke - 7.440" Block Height |
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Stroker Kit # |
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Crankshaft # |
Rod # |
Piston # |
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Description |
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Buy Now |
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Status |
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| BC0989 |
BC5917 |
BC6915 |
BC7915 |
BC STROKER KIT - BC 4340 Crank (78mm), BC ProH2K Rods, CP or BME Custom Pistons |
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In-Stock |
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| BC0988 |
BC5917 |
BC6916 |
BC7915 |
BC STROKER KIT - BC 4340 Crank (78mm), BC Pro625+ Rods, CP or BME Custom Pistons |
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In-Stock |
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| BC0988LW |
BC5917LW |
BC6917 |
BC7915 |
BC STROKER KIT - BC 4340 LW Crank (78mm), BC Pro625+ Rods, CP or BME Custom Pistons |
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In-Stock |
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| BC0987 |
BC5916 |
BC6915 |
Shelf Pistons |
BC STOCK STROKE KIT - BC 4340 Crank (73.5mm), BC ProH2K Rods, CP or BME Shelf Pistons |
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In-Stock |
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POLARIS XPTURBO RACE SERIES PERFORMANCE ROD BEARINGS.
New ACL rod bearings for the Polaris Pro R and SlingShot engine are available exclusively through BC. ACL Race Series performance engine bearings are manufactured to exacting tolerances. Micron tolerance machining supported by precision measurement systems delivers consistent accuracy to key characteristics like wall thickness and crush. A blend of characteristics to provide high strength and excellent seizure resistance with no flash plating applied to further improve bearing retention and maximise heat transfer. Improved bearing retention from higher radial contact pressure with more effective heat dissipation through improved thermal transfer. Bearing Eccentricity Definition: Gradual reduction in wall thickness between the crown and parting line. ACL Race Series performance engine bearings feature increased eccentricity to improve shape adaptation to compensate for bore distortion at high speed operation. Assists in the formation of hydrodynamic oil film.
- Superior seizure resistance
- Superior cavitation resistance
- Superior wear resistance
- Superior protection against oil starvation
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Part # |
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Description # |
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Sizes |
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Buy Now |
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Status |
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| BC4901-2 |
ROD BEARINGS - ACL Race Series, Coated Bearings - Midnight Blue OEM Replacement (set/4) |
Standard |
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In-Stock |
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| BC4901HX-2 |
ROD BEARINGS - ACL Race Series, Coated Bearings - White OEM Replacement w/extra .001" extra oil clearance (set/4) |
+.001" |
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In-Stock |
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619.749.9018 ph
619.749.9128 fx
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| Some products listed are not legal for sale or use on emission controlled motor vehicles, RPM ranges vary on application.Warranty Information Copyright © Brian Crower Inc. All rights reserved.. |
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WARNING: This product can expose you to chemicals,
including Chromium (hexavalent compounds), lead and lead
compounds, which are known to the State of California to
cause cancer, birth defects or other reproductive harm. For
more information, visit www.p65warnings.ca.gov |
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