I had my car all rebuilt paint/ground fx/etc..and a rebuilt 306 pretty much stock. Last summer. I was not completely done, so I parked it covered for the witner. I was originaly having problems with the motor knocking. It was good weather while I was fixing it up so I had a 50/50 mix of anti freeze and and water. It got cold when winter came and half of my freeze plugs poped out!!! Does that mean my block must be cracked if that happens? Anyway of really diagnose it while its in the car if the block is toast? Any advice would really help.
Thanks
Josh
Thanks
Josh