I recently purchased a 99 civic si with a b16. A few weeks back it started knocking so i decided to take it apart. I found a spun rod bearing and decided to rebuild the motor. Problem is that it had a b18 crank in it. i just want to put this back to stock. i got new b16 pistons and rods no problem. My issue is that the crank for a b16 comes with two diff snout dia. Ant i need to replace the timing belt gear and the crank pulley. I ordered the new timing belt gear from honda and its the same dia. as the b18 crank. If anyone can find some specs on the crank snout dia. i would appreciate some help. Thanks.