Guide to porting and polishing
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Senior User
Joined: Nov 2002
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From: Kentucky
Guide to porting and polishing
[updated:LAST EDITED ON 20-Nov-02 AT 09:42 PM (EST)]Does anyone know of a guide to porting and polishing for beginners??
Are the porting/Polishing kits sold by summit racing a good deal??
Has anyone out there tried to do there own??
Thanks for the replies..
ftwfred
Ford_six
PLEASE send me an E-mail on a completed head!!!
ftwfred@insightbb.com
Are the porting/Polishing kits sold by summit racing a good deal??
Has anyone out there tried to do there own??
Thanks for the replies..
ftwfred
Ford_six
PLEASE send me an E-mail on a completed head!!!
ftwfred@insightbb.com
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Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
Guide to porting and polishing
I always buy my grinding burrs individually from McMaster-Carr, an industrial supply company. Cast iron builds heat up really quickly, and cheap carbides can't take heat. I would think that the Summit kit would be perfect for finish work on some of those aftermarket aluminum heads, but they probably melt like butter with cast iron.
Jared
Jared
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Joined: Dec 2001
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Guide to porting and polishing
A Dremel tool can work wonders just cleaning a head's intake and exhaust ports. Alot of heads I've looked at don't have symetrical ports and just getting rid of the excess metal can make it flow a little better. I've never worked on a I-6 head, but from this site, I've heard that alot can be done to improve flow just by reaming out the exhaust port.
Postmaster
Joined: May 2002
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From: Broken Arrow, OK
Guide to porting and polishing
There is a book called "How to Build Horsepower" that has a decent section on cylinder head porting at home. The author is David Vizard and the publisher is SA Designs.
To many people just hog out the ports as much as possible. The golden rule of porting is that is doesn't matter what you remove, it's what you leave behind. You can take out all the metal you want, but if the port shape is wrong you've wasted your time and money on a boat anchor.
To many people just hog out the ports as much as possible. The golden rule of porting is that is doesn't matter what you remove, it's what you leave behind. You can take out all the metal you want, but if the port shape is wrong you've wasted your time and money on a boat anchor.
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Senior User
Joined: Nov 2002
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From: Kentucky
Guide to porting and polishing
Excellent!!
I'll try and get the book and see if I can do it.
ftwfred
I'll try and get the book and see if I can do it.
ftwfred
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Hotshot
Joined: Oct 2002
Posts: 18,488
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From: The Big, Oregon
Guide to porting and polishing
Yeah, Dremel tools work great, but they get really hot. I use a1/2hp motor and flex shaft, turning a 1/4" collet. I can actually get into more places more reliably with this than with the dremel.
Jared
Jared
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