Guys,will the '82 high-compression euro head bolt on to my '80 US 3.3 block with no modifications/problems?I have euro head available to me but i want to know for certain,no guessing.If i need to modify,what exactly? The current head is cracked and allowing oil to mix with water big time!Weird thing is that engine runs cool with no loss of power.Please let me know.Thanx.