Curious for anyone who has used Blueprint engine in their Blazers. Any issues in the cooling department? Were you able to use the stock system or any major mods? Also what headers have folks used if any? Truck back in Tucson now so was going to get the motor ordered. Trying to sort the engine department area out now. Hope to pull old motor in a couple of weeks. A friend is going to get the tranny and tcase pulled next week to go through it. appreciate any feedback
