Also, I never said the motors are unbreakable...I'm new to the SR's and RB's...I've just read that the RB block are made out of Iron or something to that effect and that they can handle 400-500whp on stock internals...and yes, I know Scotts SR with stock internals handled 500+whp, but how many of them can do that...I sure dont know and I cant find an answer yet. I do know that the majority of people who have swapped in a RB25det are running low 12's on stock boost...which isnt too shabby...so Im trying to pick and choose $$ vs reliablity/daily driving...and if I had 20-40g, I would be all over a Supra like white on rice.