im in preparation to build up a b16 for boost. just got some eagle h beams. i decided to stick with the b16 becuase the stoke is the shortest and i just dont want issues with high rpm reliablity like an lsvtec. what im wondering is the max bore size attainable with a b16 block. how big can i go?

sorry if this question is old and out of gas.

 

yeah this has been covered a lot and can be found by searching, but i will go ahead and answer. A b16a is reliable at 81.5 mm bore on stock sleeves with aftermarket rods and pistons. Plenty of people have made big power on stock honda sleeves. Now if you want to bore bigger than 81.5 for a little quicker spool and possibly little better torque, you are gonna have to sleeve the block. 81mm on up to 84.5 is the biggest I would go.