An older gentlemen brought me his car to get running after it had sat for over 10 years. It took me a week just to get the head off. I found that coolant had seeped into number 3 and 4. The coolant had pitted the cylinder walls on 3 and 4. After 3 days number 1 and number 3 will no longer hold standing penetrating fluid. The fluid seeps down past the rings. 2 and 4 are still froze. This car is in amazing shape. I sure hope that I can get the engine running again.