[The Greatness]

i know this is kinda a late post but you use the timing belt and pump from the z6 motor. they have the same deck height. the non vtec usdm d15s have a shorter deck. the d15b and d16z6 blocks are identical. the d15b is a 1.5 but has a longer rod then the other d15 motors, and a shorter stroke than the 1.6

cliff notes

1)d15b=d16 block with shorter stroke and longer rods.