Ok i got a 1991 civic dx sedan and planning to swap out the D15B2 stock block. I found a D15B block and the guy said it's a 1994 D15B non-vtec. What i just want to know is if everything will just swap over? since my motor is has the PGM-FI ugly black box intake manifold and the D15B got the obd1 new manifold on there. I just want to keep everything stock to pass CA smog and do not want to convert intake manifold.

 

Just use the block. Keep ur same intake mani.

 

so my d15b2 manifold will just swap right over?

 

Yes it will swap over. Unless your changing the head you will have to convert it obd1(if it is) and mpfi. Other than that yes it will