Mine makes around 900hp. Ran the short block for 300 passes. Swaped out the aluminum rods and rebuilt the T&D rockers. I did find a hairline crack in the crank after 425 passes. So now it has a fresh Molnar rotating assy. Car now has over 525 low 9 second passes. The only engine parts that ever stranded me were a failed lifter and a broken valve spring (Seperate incidents). Both these parts were purchased new when I built the motor. Changed the spring at the track and won one day and semis the other that weekend at Monster Mopar. In fact the only used part it ever failed was an aluminum direct clutch drum. Due to poor aftermarket design. I modified it, still in service to this day. Keeping an eye on valve lash and bearings is the key
Doug
Doug