ok rite now i have a sleeved 85mm b16 thats in my garage. so im trying to decide should i go head and boost this or go get a sleeved 84mm gsr. the plans for the setup will be.

precision sc34
sls shorty
38mm tial
3indp
ect....
plans are for 400 plus whp.

 

the b16 will do the job but you really dont have any room for error if you damage the cylinder walls as 85mm is a pretty big bore for boost although it is sleeved,if you have to for some reason go 85.5 or 86mm that will be pushing it depending on how much power your wanting to put down...all in all if you have the time to spare i think i would go find a 83 or 84mm block and go from there

 

use whatcha got. an SC34 shouldn't do anything bad to a sleeved motor with the proper tune.

 

i think u should use what u have... it should do the job for u