Cylinders 1 and 2 have coolant flowing out

[linedriver]

I recently swapped in a long block into a skyline, and when we went to start it, it basically hydrolocked and had a ton of coolant gushing out of cylinders 1/2 when it was cracked. It was almost non-stop, but the cylinders had a ton of compression which makes me think it wasnt a blown head gasket.


Has anyone had this happen to them? It doesnt make much sense to me as to why it would do this. Is it possible that I hooked up something wrong that could cause coolant to flow to cylinders 1/2 rather then flowing air into it?

[BrianV8]

head gasket or cracked block or head?

[m_melen]

i think he meant to say "when it was cranked"