496HO Heads Restrictions
12-19-2005, 04:28 PM
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496HO Heads Restrictions
I see two obvious restriction points in the 496HO head intakes.
One is a cast iron bump that protrudes into the intake port around the end of the rocker arm stud. Is this extra cast iron really necessary?
The other is a wall of cast iron connecting one side of the end of the valve stem guide boss to the wall of the intake port bowl. I looks like it is meant to cause the air flow to become turbulent at this point. Any knowledge on the actual performance necessity for this air obstruction wall.
One is a cast iron bump that protrudes into the intake port around the end of the rocker arm stud. Is this extra cast iron really necessary?
The other is a wall of cast iron connecting one side of the end of the valve stem guide boss to the wall of the intake port bowl. I looks like it is meant to cause the air flow to become turbulent at this point. Any knowledge on the actual performance necessity for this air obstruction wall.
