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Orca Performance Fin

Orca Performance Fin

Uncle Norm's Marine Products

  • $ 28900

The Orca-Performance Fin triples the effective rudder area providing a tighter turn radius and sharp crisp directional control at any speed. The larger surface area of the Orca-Performance Fin blocks cavation better than hydrofoils while adding the benefit of enhanced slow speed maneuvering and heading control. The Orca-Performance Fin installs in minutes without drilling using the 45M-Clamp kit or bolt directly to the cavitation plate using included hardware. The Orca fin is usually mounted with the fins down but may be installed fins up without modification if you desire less aggressive control. Used and tested on fishing boats, runabouts, pontoon boats, cruisers, ski boats and bass boats since 2002.


  • 3x the Steering Control
  • 2x the Turn Rate
  • 3x the Effective Rudder Area
  • Get on plane faster
  • Prevents Cavitation
  • Maximizes Thrust Resulting in Improved Engine Performance
  • Reduces Bow Rise
  • Improves Visibility



  • Black Powder Coated Aluminum
  • Designed for boat motors with propellers up to 16 inches in diameter
  • Use on outboard and I/O engines up to 300HP (Not recommended for the Volvo with exhaust through cavitation plate.)
  • Compatible with autopilot systems
  • Simple installation
  • Patent Pending
  • Made in USA

    No-Drill Clamp Kit (Optional)


    No holes to drill when mounting the Uncle Norm's Fins with the No-Drill Clamp Set. Works on most outboard and I/O stern drives up to 300 HP. It's simple, fast and effective. Aluminum construction and powder coated for good looks and durability.

    • Designed to be Used with the Orca-Performance Fin and Dolphin-Trolling Fin
    • No Holes to Drill in the Motor
    • Machined from Solid Aluminum Bar Stock
    • Stainless Steel Hardware Included
    • Black Powder Coated Finish
    • Installs Quickly with Minimal Tools
    • Can Be Removed in Minutes
    • Simple Instructions
    • Made in USA




    In Use Pictures

      Customer Reviews

      Based on 30 reviews

      Orca Performance Fin


      Installation with the clamp kit was super easy! Before I installed the Orca, my boat wandered very badly at idle - I never knew where it it was headed. With the Orca installed, steering at idle is very responsive! It's even steerable with the engine in neutral with just forward momentum! I just wish I had gotten it at the sale price.

      Lund Sport Angler/ Merc 115 Pro XS

      Boat had the typical "wandering" in gear at idle/low speed. Very frustrating trying to pull plugs or troll with the main motor. Also, hole shot and trimming wasn't the best. Purchased the Uncle Norm's Orca fin and no-drill kit. Easy and fast install. what a difference with the low speed wander- it's gone now!. Improved hole shot and planning. Very satisfied with the results.

      Great product

      Comes up very fast, steering onto trailer is a dream. Very happy.

      Mercury 150 4 Stroke

      As advertised. I was looking to improve low speed stability and the Orca Fin delivered. Upon receiving my product I decided to bolt it on rather than use the clamp set. I contacted Uncle Norm's about returning the clamp set and they said no problem and I was refunded my full purchase price. Great company to do business with, great products, just as advertised.

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