David did a great job several months ago on my Northstar engine in my '95 Oldsmobile Aurora. He did
a total rebuild and it runs like a new engine. Recently, he replaced my heater core so I am ready for the winter. It has never worked that well since I owned this particular car during the past 3.5 years. David and his office manager Alisha are very professional and deliver outstanding service. I recommend Powertrain to everyone I know. Cheers!