Alright heres a question. What are the differences between the B18B engine and the B18C engine? is it just the head? or is the block different in anyway?  

from my experience the block is the same just without a girdle... but don't quote me on that  

well the block was made to accomodate the v-tec system. So it has oil passages that the b18b doesn't have. The whole engine was acctually made to run v-tec, so internals acctually a little different.