assume these numbers are about the same for the Merc 850's? most likely will end up with a pair of those in a boat in the future.

Ours have been great so far, they have 115 hours on them. Did a refresh when we bought the boat last year. They run great and are very dock friendly for the size of motors. Would definatley have them again in the future. The lifespan all depends on the throttle position and routine maintenance.

thats great to hear. nice that higher HP engines are finally proving reliable

Arent they solid rollers in the 1075's?

What type oil use in these motors?

We ran amsoil then switched to schaffers on the next boat

This thread sheds light on a bunch of things. Great read!! I also heard the valve train is the most common problem with these engines

Yep that sums it up

Two 1075s
 

If you are looking to purchase good, solid running 1075s, we have two for sale (they were pulled out of our boat January 2016 because we upgraded to 1350s) and they are located in Sanford, Florida.
The intake valves are custom titanium and some other parts have been upgraded.
These engines have been expertly maintained by Bruce Baker / Express Engines and we have all of the documentation about their maintenance.
Hours on Port 111.4
Hours on Stbd 108.1
75K