It’s not uncommon for a World of Outlaws team to have 6 engines. It is a big expense. It’s a very hard lifestyle as well. David Gravel has a YouTube channel and it allows good insight as to life on the road with one of these cars. After you race and sign autographs it’s time to load only until you reach the nearest car wash. They unload, wash the car, reload, then drive - usually many hours to reach the next town you race in. Maybe get to bed around 4 am. Back up at 9. Unload the car at the hotel parking lot, service the car, set the valves, look at the oil filter. Put the nights setup on the car and reload. Get to the track by 2 to get in line when the pit gate opens at 3. Get in the track, unload, prep and put heat in the engines around 5 pm to do it all over again. Rinse and repeat 90 nights per year!