max rpm on 5.7L

[jagrimes]

What is the max rpm on an 86 5.7l omc cobra? Right now it is turning 3000 max with a raker 14.5x20. We are wanting to reprop to pull skiers better but dont want to over rev while just riding.

[Luchog]

I'm not sure but 3000 seems pretty low, I'd say max RPM for a 5.7L should be between 4400-4800

[Titanic]

I have a 1989, 4.3 liter v/6 omc cobra. My red line is 4400. However with a 14.5 x 19 I can trim up without cavitating and reach 5000 R.P.M.. I hate to say it but if your only getting 3000 R.PM., I think you have a significant problem.