Hey guy, I have a B18a1 block with PR4-j pistons and stock rods. I will be putting a b16 head with after market valves (not sure what brand) I dont think he made it any bigger, just changed out the valves

My questions is: will the pistons hit the valves? Do I need to shave some of the pistons so the valves will not hit?

Thanks for you time.


Pic of pistons:

 

the only definite answer would be to clay the motor.

 

Thanks for the input.

I thought this would be an easy question cuz there are so many LS/vtec's out there.