This was my stock 98 motor twin turbo kit 417 motorsports built as well. We did this back in 2004, made 575 rwhp till 2008 when I pulled the motor out and sold it for my built one (really bringing back the past here lol). As long as the tune is right they will last.
If you leave the stock motor and compression just be sure to be conservative on timing and rpm. That is what will kill a stock motor.
