ok i was wondering what would be the biggest you would bore your block? i am planning on running a b20vtec and it is already bored 84.5mm is that too big for turbo? also let me know any tips you guuys have. thanks
-Kyle

 

my friend is runnin 86mm in a b16 block boosted.

 

86mm is the biggest. You could go 87mm but alot of people would not build it.