itr pistons

Import Builders

Senior Member
No, it won't be worth it. Better pistons, but not worth it.

Only thing thats worth it is aftermarket pistons, or CTR pistons.



Senior Member
right, but an overall higher c/r right? so in theory it would produce more power. Not alot, but some.

in a gsr motor -

usdm itr -10.8
jdm itr -11.3
b16 - i can't remember, 10.0 i think

putting itr pistons in a b16 will LOWER the compression.

the pistons have a smaller dome, and thus, make less compression


Senior Member
Well, what the fuck. Those are alot cheaper than the itrs I had in my car. and mine were only 10.8:1. Wish I had known that.... Are you noobs paying atention? :p j/k

Dude, that calculator is sick. good hookup. so ctr pistons in a b20/vtec with a b16 head, stock deck height, stock head gasket is 13.0:1 c/r ...... wow.... B)
yes, but they dont fit the rods. lol

b16a/ls/b20 pistsons and rods will interchage
gsr/itr/ctr pistons and rods will interchange


Senior Member
they will work on the b16 or ls rods you just have to have them machined down a bit so they fit because the rods are a little thicker on the b16 and ls. a machine shop can get them to work