What is the difference between angle port and straight port heads, besides the angle of the port? I am putting together a 406 and need a set of heads that will work with a set of Hooker 2055 headers.

 

It's angle plug and straight plug. Straight plug heads have the plugs entering the chamber perpendicular to the head in a plan view. Angle plug heads have the plugs entering at an angle. The actual angle can vary depending on whether you're talking about a stock L98 angle, or a particular aftermarket design, for example.

 

Thanks for the correction. Is there any andvantage one over the other? I was looking to get a set of aftermarket cast heads.

 

Angle ports in theory make a miniscule amount more power, but there's no real difference. Clearance for your headers is a greater concern.

 

I'd say angle plug heads usually fit better as far as exhaust. I believe the original idea came from GM saying that the spark is better exposed being angled.

 

I am concerned now. I may have clearance issues regaurding what?

 

If your headers aren't designed with the plug angle of your heads in mind, you might find the plugs and the header primaries trying to occupy the same space.

 

Thanks for the input, I appreciate it.