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CAN-AM MAVERICK X3 (ROTAX 900 ACE) STROKER KITS
The BC stroker kit for the Can-Am X3 engine platform incorporates a 73.5mm (+3.8mm) stroke in the OEM crank pin configuration. This 73.5mm stroke along with the stock 74mm bore turns the ROTAX 900 into a square engine which delivers the perfect balance of speed and pulling capability. Depending on bore size that you decide, the BC kit will take you up to a 948.35cc with stock 74mm bore or 974.17cc with the big bore 75mm configuration. As usual, each BC kit features your choice of custom CP, JE 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. Stock stroke 69.7mm billet crankshafts also available as OEM replacement with added counterweight mass for proper balancing characteristics.

Note: If using the BC connecting rods with the low profile, 625+ ARP custom rod bolts, the aftermarket billet girdle is not required.

  • BC 4340 billet steel crankshaft (73.5mm stroke) rated up to 500whp.
  • BC EN40B billet steel crankshaft (73.5mm stroke) rated in excess of 500whp.
  • BC 4340 steel billet crankshaft (69.7mm stock stroke) rated up to 500whp.
  • BC 4340 Pro Series (ProH625+) connecting rods featuring ARP premium fasteners.
  • CP, JE or BME aluminum forged pistons (any bore size, any compression ratio).
  • 9310 Series wrist pins come standard in every BC stroker kit.
  • Ductile iron plasma top rings, tapered second ring, low tension oil rings.
  • Fully system balanced and ready to install. (50% deposit required)
Stock Specification ROTAX 900 Ace 74mm Bore x 69.7 Stroke - 7.180" Case Height
Stroker Kit # Crankshaft # Rod # Piston # Description Buy Now Status
BC0938 BC5931 BC6932 BC7931 BC STROKER KIT - BC 4340 Crank (73.5mm), BC Pro625+ Rods, CP, JE or BME Custom Pistons In-Stock
BC0937 BC5931 CA6932 BC7931 BC STROKER KIT - BC 4340 Crank (73.5mm), Carrillo Rods, CP, JE or BME Custom Pistons In-Stock
BC0935 BC5930 BC6932 CP or JE Shelf BC NON STROKER KIT - BC 4340 Crank (69.7mm), BC Pro625+ Rods, CP, or JE Shelf Pistons In-Stock
BC0939 BC5931 BC6933 BC7931 BC STROKER KIT - BC 4340 Crank (73.5mm), BC MOAR Rods, CP, JE or BME Custom Pistons In-Stock
BC0936 BC5931-EN40 BC6933 BC7931 BC STROKER KIT - BC EN40B Crank (73.5mm), BC MOAR Rods, BME, CP or JE Custom Pistons - 500+whp Top Fuel Drag In-Stock
619.749.9018 ph
619.749.9128 fx
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..
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