Which part, the motor or the rest of the truck? Saying that you can't have a 1000hp in a daily driver that is reliable isn't exactly true. How you use and abuse the power has a lot to do with how it holds up. Other than the crank issues I have had very little issue with these motors holding up under power. Same with my personal built motor, I have put it through hell since it was built back in nov. 2012. Only real issues with it so far was a broken crank last year and when I had it apart to fix that I ended up putting my stock heads(with valvesprings and valves upgraded) back on because the ones I had on it had started cracking. While apart for the crank I installed the 625+studs to keep it sealed up. Even though I ended up with a 2-piece crank there was zero bearing damage so I just bought a new GM crank and balanced it and put it back together with out changing anything else. Besides the street miles on it and dragstrip abuse, it has some where around 200+ engine dyno runs on it from 800hp to 1400hp and probably close to 100 chassis dyno runs on it also. It has been very reliable for the abuse that I have put it through. Look at what Brett's original motors have been through and proved to be very reliable for the power level and abuse they were put through. Above 1400hp is were I think the reliability starts to become a serious issue.
