I just completed this exact build.
0-320 b2b stock 160hp
Complete rebuild
All steel parts overhauled by aircraft specialties
Case overhauled by divco
New cylinders from
http://www.airpowerinc.com/
Overhauled crank
New cam with dlc coated lifters
New combustion tech 10:1 pistons
Crank, rods and pistons balanced within 1 gram.
Prop dynamic balanced to .02 ips.
Drop shipped cylinders to lycon for port/polish and strip paint with anodizing.
Drilled carb main jet from #42 to #37
Dual pmags
Engine is estimated at 190+hp by lycon. They build the exact same engine without 10:1 pistons for supercubs and it dynos 185 hp. The video is in the media section of lycon’s website. Last two videos.
http://www.lycon.com/media.html
My engine runs cool, pulls like an 0360, weigh 20 lbs lighter than a 360 and cost me $20k to build. There is no more power to be had out of my engine short of a turbo.
I also converted from a catto 3 blade fixed pitch to a whirlwind 200rv prop and swapped the odyssey pc680 for the earthx 680. This saved me 10lbs in battery alone. The performance difference was dramatic and well worth the $30k i spent firewall forward.