C-17 kit

Go to cat masters 3 on FB ...they should be able to help you out

 

Unless you want to make big power just go with the 16:1. And you could still make 700 easy.

18:1 with no actuators some say head gasket will live if you drive it right, never lug it.

 

Pretty mixed bag of opinions..

 

18:1 turned up isn't gonna last long. Save yourself peace of mind and go 16:1

Like @lester said if you go with 18:1 don't lug it. Even with studs that's a ton of cylinder pressure, asking for trouble down the road

 

There’s a thread on here of a member (@Superhauler) I believe, that was about having the head machine with rings or something for his Accert. It eliminated the head gaskets issue for high compression pistons. Maybe some others can chime in on that. Btw, haven’t seen Superhauler on here for awhile.

 

Sadly he got the ban hammer.

 

O-ring cut head. It's actually a stainless steel ring I think. I'm just about ready to have a new ring cut head thrown on my block. I'll snap some pics. Will definitely help head gasket hold if everything else is right and tight. Protrusion that is

 

18:1 you need the actuators….. if you want to get rid of them go with the 16:1 pistons

 

You’ll be fine. Leave it the way it is. Look up Adepe Ape on you tube. Points out what @lester is talking about with counterbore cuts and stainless shims. Use a Genuine Cat head gasket, make sure liner protrusion is within a half a thousandth all the way across the deck around 5 thousandths (IIRC), which is easy to obtain with the Cat recommended counterbore/stainless shims. Use the Cat water jacket sleeves. Make sure your spacer plate is perfect. Make sure your ECM isn’t tuned improperly (injection timing…not sloppy fuel) and keep an eye on your water temp. Lower compression pistons might give you a little more longevity and a little less heat if you’re pulling heavy steep grades.