I want to know is it possible to put a d15b2 crank in to a d16a6 bolck if so could i use d16 rods and pistons. i've had a great deal of experience with both motors in cars and it is my opinion that the d16 has a great deal more torque but it top end after 5800 it takes a dive plus when i do the build on my car for big numbers i want to give up my low end for traction with street tires. my experiences with the d15 is its power wants to go clear to the redline. that just my experience with obd 0 motors.

 

main journals are smaller on the d15 crank. d15b2 crank also has smaller rod journals.

jdm d15b crank has larger rod journals (like a d16)

 

thanks for the info so if you don't mind what is the stoke diff of the jdm d15b and usdm d15b&b2 if any at all