Prechamber Mod "Flame" Front
Prechamber Mod "Flame" Front
Maybe the PC's didn't have anything to do with it. However, your PC's are the most hogged out ones I've ever seen and now a cylinder head not known for cracking has cracked in multiple cylinders. It should be considered a data point. Thank's for sharing the info.
I'm assuming your cooling system was working fine, right? No overheating, etc...