I have been looking in to buying a motor, and I always see two different kinda of B20 Motor, with a small price difference.
One is B20B DOHC Engine only Acura Integra & Honda CRV (Short Intake Manifold) 97-00 and

the other is B20B DOHC Engine only Honda CRV & Acura Integra (Long Intake Manifold) 97-00

Can someone please explain what the difference is? Does B18b have two different kinda of motors like this too?

Any advice will be appreciated. Thanks.

 

The B20 only come in s CRV and not in a Integra. the high intake manifold only come on the b20 and the crv, as it has a taller engine bay, and the taller intake manifold give the b20 more low end torque. You can't use the tail intake on a integra with a b20, because there is no room under the hood.