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Beryl D'Shannon
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IO-520 to IO-550 Conversions

  Powermaster Engines Is The Leader in IO-550 Conversions

IO-520 to IO-550-B Engine Upgrade STC
For your Beechcraft Bonanza with a TCM IO-520-B, IO-520-BA, or IO-520-BB

Bonanza converted to IO-550 Engine

Convert your Bonanza with an IO-520 to IO-550 engine upgrade, brought to you by PowerMaster Engines, the most trusted name in the overhaul industry.

  • Increase Performance
  • Increase Useful Load
  • Increase Reliability
  • Increase Resale Value
IO-550 Engine ConversionIO-550 Engine Conversion
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Powermaster is the leader in the conversion of IO-520 to IO-550 for Bonanza and Baron installations. Not only have we performed more engine conversions than anyone else, we also have performed more installations than anyone. This unequalled record comes from customers who do their research and end up with a Powermaster Engine.

Our track record speaks for itself!

Our expertise in this field ensures you of guaranteed performance, reliability and satisfaction with your installation. Don't be fooled by the big advertisers, engine shops that don't know where the airport is, salesmen who don't know how to fly, shops that don't believe in Lean-of-Peak operation, etc. We will personally teach you the proper operation of your engine.

Some Details of our IO-550 Upgrade:

  • New 550 crankshaft
  • New 550 connecting rods
  • New cylinders
  • New camshaft
  • New oil cooler
  • Seventh stud upgrade
  • New Starter
  • New fuel injection system
  • Overhauled starter drive unit
  • 100% mandatory parts replacement
  • Full NDT and machining of crankcase
  • Full NDT of internal steel parts
  • New magnetos, harness and plugs
  • D'Shannon Airframe STC
    for 550 installation
  • D'Shannon baffle kit
  • New engine mounts
  • New beech air ducts
  • New Teflon hose kit
  • Engine rigging
  • Test flights
  • Engine compartment detailing
  • New exhaust system
  • Engine monitor installation
  • Fuel injection system setup
  • Gamijector tuning
  • Engine monitor instruction
  • Dynamic balancing of the propeller to engine
  • Instructional flights with owner on delivery

CONTACT US for complete details.

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