I have D15B2 that make 90hp and use lots of fuel becuse of faulty carburator. I have D16Z5(basically D16A9), so i would like to know if a can use block from b2 and everything else from Z5, or use head, intake and cpu from z5? Help please

 

do you have the complete Z5? if so, it would be a lot easier to just convert your D15B2 engine wiring harness to MPFI and swap in the complete Z5, along with the Z5 ECU, which would be a direct bolt-in to your chassis - the DOHC Z5 head is not a direct bolt on to the D15B2 block (bolt hole don't match, different size head bolts,etc.) - putting it on the B2 block could be done with a lot of work, (including machining), and a myriad of other changes - you would end up with a compression ratio of around 8:1 which wouldn't be ideal, plus you would still need to convert the D15B2 wiring harness to MPFI