I used these kits several times. I always upgrade to coated forged pistons, cromoly rings and clevlite bearings. It's a good kit for the money. Everything else is all on personal preference.LWillmann said:Summit does offer a rebuild kit for the LT1. Forged pistons, rings, bearings, gaskets, etc. No cam, no rods, no crank though, unless you go with their 383 rebuild kit.