Whats the difference from a b20b and a b20z?

I just paid the shop a visit...ends up my motor is a b18b with a b20b valve cover...he showed me the stamp on the motor that says b18b, and the valve cover says b20b.

 

The difference between the B20B and B20Z is the compression ratio.

The B20Z has a marginally higher CR, making it more suitable for a naturally apsirated tune (this includes the VTEC head swap).

But since you have the motor you wanted, the point is moot.

 

I am curious where the valve cover says b20?

 

i'm curious to know if the head is the same head that came on the motor originally, who knows who put this motor together.

 

I dont know...the motor and intake mani look different then before, but the block is stamped b18b. It just says b20b in chalk from hmotors.

 

they just mislabeled it, it happens.

 

First, is this all in writing? If so, I would ask for the proper engine be put back
in at his expense. He clearly misrepresented his work and should be held
accountable. If you have a contract this could all be taken to court
if necessary. Good luck.

 

Everything is taken care of.

 

lol so what happend. was is the right motor?

 

yea.. he just said it was the right motor..