Another Omc thread
 

Hello folks! As you can see I am new here. I have read tons of threads on this site and figured I would sign up. So now that is said I have some questions.
I have an 88 fw 241 liberator. Yes I have the dreaded 460 king cobra with the dog outdrive. No need to bash as I know the story. I would like to stroke my 460 and doing so would like to see 65mph. What kind of hp is needed to see 65? Ive read lots who have ran big hp through this drive as long as you are not stupid with it. Currently have 800hrs on this set up. Ran 45mph loaded with a full tank. Any help is greatly appreciated

It would probably be a lot cheaper to buy a 65mph boat.

I kinda figured I would get a reply like that....Thanks

Have you done a compression test,it should run 60 now i would think

well the compression was 105 average .... with low fuel and just me it did 48 on gps. Which from what Ive read that is somewhat normal speed for this setup. I am looking at a 532 stroker kit and making around 600 hp.

Have you looked into exhaust? This is going to be one expensive four winns.

There is a guy that has one with the same set up as you near me. His has very low hours as it gets out maybe 2-3 times yearly but anyway it does 55 mph with a few people on board. Maybe 58 unloaded. So it sounds like your 460 is getting tired.

I would be willing to stick my neck out and say your going to need about 600 hp to meet your goal. I think you'll be ok with the King Cobra drive if you don't hole shot it really hard. But between heads and exhaust for that for dI agree with Lil red, get ready to open your wallet!

As a matter of fact I have a set of hitek headers....so that is covered. As for heads was going to use a set of procomps

Uh oh. Pro Comps are not a friendly word in these here parts. Expect 3 pages of Pro Comp hate, lol.

well as i havent bought em it was just an idea....and i liked the price