I saw a few things on putting supra pistons, In a sohc.
Just wondering if anybody could tell me more about it.

And yes, I did do a search....

 

do a people search for turbopanda i think he is selling a package(b16 rods, supra pistons) that can hold like 1.2 bar daily (about 16-17psi) in a d series. i think the supra piston is from an older generation supra and tend to be a stronger alternative than stock but a lot cheaper than aftermarket! anyways search for that guy he has a HUGE thread on it.