A6 block with Z6 head. /thread

 

ok i will install d15b vtec jdm
but i have question (stubid q)

does the d15b vtec jdm rods and d16z6 are the same ?
what is the deferance between d15b vtec jdm pistons and d16z6 pistons?

question in other way how come the 100 cc deferance between d15b jdm vtec (1500) and the d16z6 (1600)

 

i read again and notice that the d15b vtec and the d16z6 pistons are the same bore (75mm) but they are deferant at the strock is not ?