they differ in compression, and i believe the b20z was only jdm. i might be wrong about the jdm thing but they have different pistons. i think the b20z has higher compression.
Thanks for the info. Which VTEC head did you go with on your CRVTEC?OBD1 Kenobi said:If you change the pistons (and rod bolts) choosing between B20B or B20Z would be irrelivant. I would assume that the Bs would be cheaper to buy since they'd be older. I also believe that JDM B20Bs are the same CR as the B20Zs.