That's quite the bogus dyno sheet, wonder where it was dynoed at, do you remember where the guy was from selling it? 1000 observed hp, corrected to 1178 and bsfcs that are almost 1 lb per hp!

What about freshening what you have, sell the 10-71's carbs, chillers etc and switch to whipples, mefi4 and a new cam?

The block is at it's max bore and would need to be sleeved. I put new rings it before keywest 2 seasons ago. The motors run great but its time and just easier to stick with what we got. I'd probably just go merc 1075 if I were to get rid of everything.

47excaliber and I were just talking about this on the way home.could copy the engine build thats in his boat,I'd go w/ bigstuff3 but thats me.

Big stuff is nice, was just thinking expense. Mefi will save a few bucks.

Remember I'm just passing on info posted. Lol


http://www.offshoreonly.com/forums/s...u-1200-hp.html

Oh my...

You are smart to freshen before major problems! Good used blocks sell easy for decent money, might want to look into new blocks. The merc 1075 is cool but I wouldn't give up on your rebuild yet.

What parts are you considering reusing from your existing build?

We won't be sleeving the old blocks, just not worth it. New dart blocks and heads with new internals is it what I'll be using. Everthing else will be reused.

Seems like your mind is made up, just curious what is current bore on the blocks? They start at 4.44 on the 900's but that's was many years ago