Coolant bypass/crossover lines do I need?
I am having the same issue but i rebuild my motor, one thing i seen is the head gasket you use,.
If you look up the head gasket part on your make and model some will have a block off on the front where the crossover pipes are and the back is always flowing idk if running a line to one head to the other will lose pressure for the front two or not
i have put after market Cross over pipes on 243 heads that leak no matter what I do , they where heads from ebay i ordered snd port and polished is there any way to fix it leaking there after it gets hot and builds pressure thank you


