I have an 89 Sea Ray with a 7.4l mercruiser, I have pulled the motor and was planning on resealing it along with new rings. I was getting some blow-by and figured as old as it is I figured it was about time. I have it tore down and everything looks good and I got to thinking that maybe I should bore it out. I would like to have more power but not sure if this would gain me a whole lot.
So my question is, will having it bored out give me noticeable increased power? Last year I installed a dual plane intake and it did seem to run better but that is the only thing that has been done to it. I am looking for input and suggestions before I spend the money on having it bored. Thanks.
So my question is, will having it bored out give me noticeable increased power? Last year I installed a dual plane intake and it did seem to run better but that is the only thing that has been done to it. I am looking for input and suggestions before I spend the money on having it bored. Thanks.