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Big Bore Kit - 385cc

DR350 '90 - '99 DR350S '90 - '99 DR350SE '90 - '99
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Includes forged Wiseco 83mm Piston (83.00/+4.00 10.5:1), Rings, Clips, Pin.

  • All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life.
  • Diamond turned finish from one of the many CNC computer controlled turning centers guarantees you a perfect finish with no size variation. Wiseco pistons can be installed in any of today’s cylinder bore compositions
  • Wiseco’s state-of-the-art computerized manufacturing facility is dedicated to supplying both the high-perfomance racer and recreational enthusiast with the finest forged piston available in today’s market place.

 Top end gasket set.

  • Raises compression for better low end power.
  • Graphite gaskets feature a steel core, laminated on both sides with flexible graphite.
  • Fiber gaskets designed for maximum seal, flexibility and torque retention.
  • O-ring gaskets meet or exceed oem specifications.


CARB race use only
Ships in 3-5 business days