Propeller Characteristics - Blades
3 blades... or 4?

We recommend 3-blade propellers for recreational boats with 3, 4, and 6 cylinder outboards and I/0 engines.

3-blades provide good "hole shot" and top-speed performance.

We recommend 4-blade propellers for bass boats and those with high performance hulls running high horsepower outboard engines.

Compared to 3 blades, 4-blade boat props provide better "hole shot" performance with less steering torque and less vibration at high speeds.

When switching from 3 to 4-blades, generally a 1" pitch decrease is required. So, a 21" pitch 3-blade is replaced with a 20" pitch 4-blade. Pitch is increased when switching from 4 to 3-blades.


Propeller Help Guide
P is for Propeller Propeller Basics
How To Choose A Prop
Diameter Pitch
Cupping Rake
Ventilation Cavitation

We tell you everything you need to know about props from cupping to ventilation.

Learn About Prop Characteristics Prop Characteristics
3 Blades VS. 4 Splines
Aluminum vs. Stainless Steel
Performance Exhaust
Left-Handed Props FAQ

If you want to modify your boat's performance, consider the above before making your selection.

Learn About Engine RPM Determining RPM's
Effect of pitch on RPM
Test for Maximum RPM



For safety and efficient performance, it is critical that your engine operates within the RPM range recommended by the manufacturer.