That head won't help you much. What other heads do you got in the shop to choose from?
like something with a small combustion chamber. Anything that is a stock OEM SBC head will need generous porting to get to 400hp.. 062 vortecs work great. many are cracked thou.
If not, and you are going to "purchase" some heads. Buy a quality aftermarket cylinder head that is more than up to the task.
Like a Brodix IK200.
List the head casting numbers that you got on hand.
Last edited by F-BIRD'88; 01-25-2013 at 09:38 AM.