View Full Version : Heads dont' match....

04-18-2004, 12:35 PM
What are the symptoms if a set of heads don't match on a 400 small block?

04-20-2004, 09:32 AM
can we have a lil background on this one?

Metro Lawn
04-20-2004, 08:29 PM
You could find yourself with the same symtoms of bad head gaskets. You may find coolant in the oil as well as smoking from the exhaust.

04-20-2004, 10:16 PM
I found out they have matching casting numbers after all... I have a 400 small block tat is acting crazy in my work truck....

04-22-2004, 08:31 PM
400's have a nasty habit of cracking between the intake and exhaust valves on the middle 2 cylinders on the left head

04-22-2004, 08:33 PM
That would be #3 and #5 cylinders. What is yours doing that is "crazy"?