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10-25-2004, 10:03 PM
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#1 (permalink)
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TheGmKiller331
Join Date: Nov 2003
Posts: 1,284
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Porting heads?
Is there a place that i can send these E7's to and get them ported at a reasonable price?Im talking just ported no valve jobs or anything else we can do that at school.
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Today
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10-25-2004, 10:14 PM
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#2 (permalink)
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HankyJ
Join Date: Aug 2001
Posts: 2,830
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Porting heads?
I would look up a book or two which shows how to do it yourself. I know that Car Craft has articles on this in their web archives. I think that having a shop do it and having them take their time and do it right will set you back enough $ that for a bit more you could by some aftermarket aluminum heads. But I understand that with a little practice (on some throw away junkyard heads first), you can do it yourself, save a lot of money, and make a lot of power.
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10-25-2004, 10:33 PM
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#3 (permalink)
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blown68
Join Date: Oct 2004
Posts: 1,166
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Porting heads?
I ported a set of old '69 302 heads and if I had it to do all over, I would have gotten a set of aftermarket heads. Just to grind out the thermactor bump in each exhaust port takes forever. I did bowl blending too which is easier, but still very time consuming. I am not saying don't do it, but be prepared for a lot of work. You will go thru many cartridge rolls and it makes an absolute mess. If you do do it, get the Standard Abrasives kit. It has just about all you'll need except if you want to do more extensive porting or gasket matching of your intake. I think if you go to the Standard Abrasives website, they have a complete instruction guide which is excellent. You do learn a lot about heads when you port them because you can see where most of the restrictions are and then either grind then out, clean them up or polish them.[img]/phpBB/images/smiles/icon_wink.gif[/img]
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10-25-2004, 10:38 PM
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#4 (permalink)
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ckelly
Join Date: Apr 2002
Posts: 8,097
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Porting heads?
I agree - if you have to pay someone to port the heads, go buy some aftermarket items. Even with the Edelbrocks, you'll be $$$ ahead if you have to do the whole thing (valve job, stainless valves, screw in studs, etc.) Else gather information off the net, get some carbide bits and have at it. I've got about 80 hours in my heads - for a relatively mild port job. Figure a pro is going to take 10~20hrs at $40+ /hr.
[addsig]
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10-25-2004, 10:44 PM
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#5 (permalink)
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blown68
Join Date: Oct 2004
Posts: 1,166
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Porting heads?
I had about 40 hours in my heads and my hands were numb for a week.[img]/phpBB/images/smiles/icon_cry.gif[/img]
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10-25-2004, 11:16 PM
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#6 (permalink)
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TheGmKiller331
Join Date: Nov 2003
Posts: 1,284
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Porting heads?
I would like to learn but unfortunately no one here wants to show me or they dont know.I wish some one knew how to do it and lived close on top of not having a problem spending some time showing me how to do it.
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10-26-2004, 02:00 AM
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#8 (permalink)
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Fordman28
Join Date: Feb 2004
Posts: 624
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Porting heads?
I will second the fact that it is a messy pain. I took out the smog humps on an old set of 302 heads and that was bad, but I have a set of Dove heads that I started a long time ago one head looks pretty good the other one is untouched.
I too would like to find someone good at a fair price to send my top pro-lines to over the winter.
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10-26-2004, 09:08 AM
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#9 (permalink)
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TALON
Join Date: Jan 2004
Posts: 82
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Porting heads?
Good Morning GMKiller
go to the cylinder head porting forum - look at "midly ported e7te vs 351w"
there is a link in there for a company that has a video on porting e7 heads.
Buy a GOOD GRINDER and double cut carbide burrs and it won't take long. Get yourself COMFORTABLE and have lots of good lighting - listen to a race on TV. It is rewarding when you are done. Look at the website DIYporting.com for examples. And really removing the thermactor bump did not pickup flow that much. About 80% of the flow inprovements are in the bowl and valve job. You don't need to hog out a lot
Jim
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10-26-2004, 09:09 AM
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#10 (permalink)
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tonys10sec306
Join Date: Nov 2002
Posts: 3,478
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Porting heads?
I would just get the bowls ported . pocket porting the heads you will pick up alot of air flow. i only spend around $175 for pocket porting
[addsig]
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