Ski-Doo 850 - Big Bore Engine Kit (911) Previous Ski-Doo 850 - Big Bore Engine Kit (911)

Ski-Doo 850 - Budget Big Bore Kit (911cc)

$2,695.95
In stock
SKU
09-203-Budget

Must send in cylinders, exhaust valves (blades only), and head unless you select to purchase outright.

Use this Work Order Form when sending parts so shipping/receiving knows how to identify them. 

The Ski-Doo 850 with its huge 80.4mm stroke was just asking for a bigger bore and we have done our homework to bring you the big 911. The all-new piston was designed from scratch to accommodate all of the needs of the 911. The all-new 85mm piston is an ultra-high-quality dual ring forged piston. Bikeman exclusive head profile giving you the most focused energy possible to make the most efficient power and maintain knock protection. If you are a technical rider that wants no-lag power the instant you hit the throttle, this kit is for you! There is endless power on tap to get yourself into the best riding situations possible.
    • 911 big bore top end kit fits all 2017-Up 850 E-TEC models
    • +18 hp to a whopping 190 horsepower!
    • +18 mid-range torque gain while maintaining 15 ft/lbs up top!
    • Hard to keep the skis on the ground!
    • A fuel controller, our performance manifold, and clutching changes are required.
    • Kit Includes Fuel Controller, Y-pipe, Adjustable weight set, Stock head mod, Piston kit & Big Bore Cylinders.
    • Turnaround time can vary from 1-15 business days for this kit depending on if core cylinders are in stock. Normal turnaround time is between 3-5 business days.
    • Low Elevation requires our "BIG BORE" muffler

Cylinder Core Exchange Options(see drop-down menu):

If it is peak season please call to verify we have cylinders in stock otherwise we will have to use your cylinders for boring and porting which extends lead time out 

  1. Purchase Outright - No core cylinder, head, or exhaust valves are required to be sent in - Raises kit price by $1600
  2. Exchange Parts MUST send your cylinder, head & exhaust valves within 14 business days. As soon as you do, the $1600 charge will be refunded. Exchange parts not received in that amount of time will have no credit applied, and the customer will have to pay for return shipping. 
  3. Exchange Parts - Your order will be pulled on our shelf waiting for your exchange cylinder, head & exhaust valves to arrive. Once they arrive, we will normally ship the kit within a few business days. No core charge will be applied since we will have your cylinder prior to shipping the big-bore cylinder.

*** CURRENTLY WE ARE OUT OF CORES. THE BIG BORE WILL BE PERFORMED TO YOUR CYLINDER WHICH IS CURRENTLY A 6 WEEK PROCESS WITH PLATING BEING BACKED UP STILL*** PLEASE CONTACT US IF YOU HAVE ANY QUESTIONS BEFORE ORDERING

 

SEE THE 911 BIG BORE IN ACTION! 

 

Watch the video below for proper engine break-in protocol:

 

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