vFuzion

hey guys, hoping on building an all motor b18a ls for my crx. the head is already built, just wanted to get some high compression. was wondering if i would have any problems putting in b16b civic type r pistons with a ls head. thanks

projekteg

na, that would be fine, but what is the cr on those? why don't you get some itr's instead

vFuzion

i've heard ctr's give you around 11.4 compression because of the higher dome whereas jdm itr's give you around 10.8. so i figured going with the ctr's instead..

Yianni

wait im confused...I thought the b18 was 1.8L and the b16 was 1.6L,so how are u gonna put 1.6L pistons in a 1.8 block? aint they gonna be too small?Maybe this is just a stupid question.

projekteg

b series pistons are interchangeable, it's the crank and rods (stroke) that make a 1.6 and 1.8 different.......

88crxSi

1.6l = blah, normal
1.8l = stroked 1.6l
2.0l = bored 1.8l

hotrex

yup

88dx

I would go with some ITR or second Gen B16 pistons since they are a little lower for street driving. Plus if you add a Vtec head or need to shave the head in the future the CTR pistons will have a really high cpr. But it all depends on what kind of gas and tunning, bigger cams would like the high cpr with the Ctr's pistons. just my oppinion though.
steve

anthony88

how much are the pistons would it be cheaper to buy forged pistons srp

projekteg

i think they're a little less than most forged pistons. i think you can usually get a new oem set for under 300......