Well, to be honest with you, the OS .18tz will not provide as much power as a big block. I have the Stage 2 AB Modded version of OS .18tz and it is the most powerful small block period. However, it will not beat my Sportwerks .26 engine by far. Since the sportwerks .26 is made to carry heavy loads, when I used it in my rs4, the load decreased dramatically. it was like the engine wasn't carrying anything. This allowed my sportwerks engine to rev over around 40,000 rpm. It is really a screamer. I am just amazed. Well, let me know how your project goes.