Choosing a Prop

Dave R · 07-12-2017, 10:41 AM

Engine makes a huge difference in the prop selection process. Anything over 4.3 liters should really have a stainless steel prop, IMO. The torque that bigger engines make will flex the blades badly on an aluminum prop and make the boat feel mushy. Below 4.3 liters, there's not a big advantage to stainless steel. I suggest not hitting rocks no matter what you choose. I would get the damaged prop repaired by a local welder (cheaper than a prop shop) and use it as a spare.

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07-12-2017, 10:41 AM	#2
Dave R Senior Member Join Date: Jul 2004 Posts: 2,985 Thanks: 246 Thanked 744 Times in 444 Posts	Engine makes a huge difference in the prop selection process. Anything over 4.3 liters should really have a stainless steel prop, IMO. The torque that bigger engines make will flex the blades badly on an aluminum prop and make the boat feel mushy. Below 4.3 liters, there's not a big advantage to stainless steel. I suggest not hitting rocks no matter what you choose. I would get the damaged prop repaired by a local welder (cheaper than a prop shop) and use it as a spare.