I am wanting to do a b20/vtec motor for my da, and i was wanting to get the 84.5mm dome rs machine pistons with for built, but i do not know what the compression is going to be with a gsr head. The motor is going to be in my daily driver, so i don't want the compression to be extremely higH. I want the compression to be at about 11:5:1 or at the max of 12:1:1 compression.

The setup I was thinking about:
84.5mm Rs machine Pistons
ls rods with the arp rod bolt and cryo treated
acl bearings
gsr port and polished head and 3 angle valve job
omni high compression valves
skunk 2 dual valve springs
skunk 2 pro series retainers
blox b cams
Hytech header

Out of this setup.. I am trying to get at least 200whp. I am open for suggestions.


Another issue that i have been trying to figure out is that the only thing that you have to do to ls rods is get them cryo treated and have arp rod bolts and i am good to go to rev to about 9500.