i'm planning on sending out my b20b block to get sleeved by RS machine in the next couple of weeks and i want to be different from most of the b20's in my area so i want to bore the cylinders out to 85.5mm (2.1L i believe) and i want to turbo the block with wiseco pistons.... just wondering if i should bore it out since the car will be driven often although not that far i just want to know if it could handle the stress of being a daily driven block (too thin?/not too thin?)... with any suggestions would really help me out thanks in advance...

 

Take into consideration the supporting mods your gonna need to keep that block from grenading. Good engine management, maybe a block gaurd since the sleeves on b20s are already pretty thin. Talk to your engine builder on what he thinks and you should be fine. - Darrell

 

if you ar getting it sleeved just have 85.5mm sleeves put in and it will be cool

 

unfortunately i have to settle for 85mm sleeves but it's cool i have just bought some iodized pistons for the block from supertech