Props, stainless vs aluminum

Bski

Seaman
Joined
Aug 1, 2004
Messages
64
Owned 3 boats in the last 20 years, never had a stainless steel prop cause I've always been worried about damaging the lower unit.<br /><br />Does anyone feel that a stainless prop gives that much better performance than an aluminum?<br /><br />Has anyone ever damaged a lower end because of a stainless not giving when they struck an object under water?
 

tommays

Admiral
Joined
Jul 4, 2004
Messages
6,768
Re: Props, stainless vs aluminum

the prop faq in the faq section talks about this in detail i happen to have a great abilty at hitting bottom but its mostly sand so a ss prop will hold up better when i am hitting rocks i like aluminum<br /><br />tommays
 

Doug Durako

Chief Petty Officer
Joined
Nov 17, 2002
Messages
519
Re: Props, stainless vs aluminum

Performance is about 5 mph better with stainless.<br /><br />They do not flex like aluminum at high rpm.<br /><br />I used to rebuild one or two aluminum props every year---$75 each time. Did that for 6 years before I purchased a stainless prop.<br /><br />No rebuilds since. Do the math.<br /><br />If you hit rock or a steel pipe or a concrete pier, it won't matter if you have aluminum or SS----you will spin a hub or do some major damage---depending on your speed at impact.<br /><br />I have three stainless props---one for speed, a Torque Shift to pull tubes and skiers, and the one that came with the boat as a spare.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,866
Re: Props, stainless vs aluminum

I've Trashed Several drives using Aluminum Props....................... :D
 
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