This is topic gasket matched my heads.. in forum General Talk at Northern California Ford Owners  .


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Posted by blkfoxbody89 (Member # 8361) on :
 
Well.. I got bored and decided to give porting some aluminum heads a try... I'm using a trusty little electric Dremel, and some 80-120 grit sand paper bits for shaping the ports. I used my 1262 Fel-pro lower intake gasket to give me my boundaries. I will also Shape the ports to the heads on the performer lower intake to the 1262 gasket as well. I will be posting the pics as I make progress..

Here's What the intake port on the head looked like 5 minutes into the process.


And here is gasket matched port.

 

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Posted by blkfoxbody89 (Member # 8361) on :
 
Here is my Lower intake to the Head port before the gasket match..

 

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Posted by 50 Deep (Member # 6216) on :
 
not bad man. more flow never hurt anyone
 

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Posted by blkfoxbody89 (Member # 8361) on :
 

quote:

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Originally posted by 50 Deep:
not bad man. more flow never hurt anyone

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Thanks Bro. it isn't CNC quality, or to professional standards. But I'm happy the results so far.. It my not look like it in the pictures, but it is super smooth to the touch for the 120grit surface. I think I'll finish it with a 220, after I get it to perfectly contour with the gasket that is. I'm taking my time on perfecting the transition between the lower and the head. Hopefully I'll turn some good numbers at the track. that will make this time consuming project worth it. I'll post some more pics.
 

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Posted by blkfoxbody89 (Member # 8361) on :
 






Here is the Exhaust port untouched-


And this is what I will open it up to, this will match the openings for the BBK Longtubes-

 

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Posted by Blind (Member # 3052) on :
 
everything I've read has said not to open up the exhaust ports, that the port size aids in scavenging and increases exhaust flow, where did you read that you should match the exhaust ports to the header ports?
 

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Posted by blkfoxbody89 (Member # 8361) on :
 
To tell you the truth, I didn't read s#!$ about anything I'm doing. it's all experimentation. I'm just trying to make as little airflow turbulence as possible.
 

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Posted by phil a (Member # 6951) on :
 

quote:

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Originally posted by blkfoxbody89:
To tell you the truth, I didn't read s#!$ about anything I'm doing. it's all experimentation. I'm just trying to make as little airflow turbulence as possible.

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quote:

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Originally posted by phil a:

quote:

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Originally posted by blkfoxbody89:
To tell you the truth, I didn't read s#!$ about anything I'm doing. it's all experimentation. I'm just trying to make as little airflow turbulence as possible.

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Looks good! What are you using to do it?

Not 100% sure, but I think Blind is on to something. I've heard that the real restriction in the exhaust port/header is the pinch on the primary tube by the bolts on either side. Some people have added a bead of weld to the outside/backside of the header (where the tube enters the flange) and then opened up the inside of the header opening to match the exhaust port, but not open up the actual port on the head itself, as the restriction lies in the header.

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