I'm still not motivated to work on the car much but since I already have guys starting to buy parts I have to start yanking it apart.
I pulled the head on the known bad bank off tonight and found exactly what I expected to. Broken ring land, about 5/8" of the ring missing. There are bits of ring stuffed into the piston and the head. The bore however is perfect... go figure.
Looks like I'll have to clean up, weld, and surface the head and probably touch the valves up before I can sell them.
No obvious signs of detonation in this bank of cylinders, all the other pistons & chambers look great.
On these particular pistons the upper ring is only .180" down from the crown. Most blower/turbo pistons have the top ring .300" (or more) down to prevent exactly what happened here.
