Originally Posted by sleeper99ex

do some reserch. the only diffrence in the 1.6 to the 1.8 is the stroke. the cylender bore on the b16 b18c1 b18c b18c5 b18a and b18b is 81mm. the b20 is 83mm. so there for any b series pistons other that the b20 will work in any b series block other than the b20. the ctr has the highest stock compression then would be the itr then the gsr then the ls. i was going to use the pistons in an all motor ls/vtec build but i have decited to do a diffrent build. in the build i was going to do(b18a1 block with b16 head) the pistons would have givin me a 12.7-1 compresion.

if there is any thing else you want to know just give me a call at 850 346 1891.

Originally Posted by dsmlover88

i dont believe so since their ctr, you would need itr. since ctr is a 1.6 and itr is 1.8, i may be wrong though.