friend of mine may take a boat on trade with these engines...

can anyone tell me more about them?
general reliability
idle friendly
how many hours before rebuild
cost to rebuild compared to other engines like 500's efi or 525.
so on and so forth!

thanks!

also not sure what fuel they burn! check the link, not sure i understand... 87 ? or 91 in the fuel requirement line? they state both...

http://www.mercuryracing.com/sterndr...gines/600-sci/

Buy lots of bravos. That's the most hp they ever got hooked to.

Even bravo 1 X ?

Even a bravo 1 x, xr, xy, whatever... bravo anything typically doesn't last long behind them.

If you know how to drive the bravo will hold up just fine.

what about fuel guys? 87? or 91 ?

87 oct.

http://www.mercuryracing.com/sterndr...gines/600-sci/

Bravo XR Sport shorties lasted 100 hours behind 600's in a Sunny F-4 (11,000 lb) before owner traded it.

Great motors. Love the whine! Can turn up to 700's.

Edit: I would double check the manual for whatever year motors they are. Merc may have changed fuel requirements over the years. I can't remember what we used to put in the F-4. Let me double check with the owner. For some reason I thought we ran more than 87 octane.

87 is the US measurement for octane rating. (R+M/2).

Talked to me buddy. His 600's, which were '06's, called for 91 but it stated you could run 87 in a pinch..