LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Porting Heads

Old Jul 20, 2005 | 01:47 AM
  #1  
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Porting Heads

Well Im fixing to start practicing on porting heads and I have the grinder I was curious if anyone knows where I can get all the bits what else I need to use to do the job. Also if anyone has any good pics of fully worked heads so I can have something to look at.. Also any tips would be greatly appreciated

Last edited by 93 4mula; Jul 20, 2005 at 02:15 AM.
Old Jul 20, 2005 | 06:02 AM
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Re: Porting Heads

Get David Vizzard's book on porting heads. Invaluable.

Rich
Old Aug 3, 2005 | 07:29 AM
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Re: Porting Heads

where can you get the bits from?
Old Aug 3, 2005 | 07:58 AM
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Re: Porting Heads

www.summitracing.com

Search for porting kits
Old Aug 3, 2005 | 09:47 AM
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Re: Porting Heads

Is this all I need to do it correctly? Or do I need some kind of special bit?

http://store.summitracing.com/defaul...=egnsearch.asp
Old Aug 4, 2005 | 11:29 PM
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Re: Porting Heads

Originally Posted by 93 4mula
where can you get the bits from?
Mondello is a good source.
Old Aug 5, 2005 | 03:11 PM
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Re: Porting Heads

Originally Posted by rskrause
Get David Vizzard's book on porting heads. Invaluable.

Rich

i second that, i started before i read this book and really wish i would've read it first!

as for tools try www.jlindustrial.com
you'll need a 6" and 2" long carbide burr, round end
6"/4"/2" cartridge roll mandrel (known as tootsie rolls)
a box of 80 grit rolls
and i suggest a fine grit polishing stone such as a 240 or so and some emory cloth.

a nice 4" 120 grit flopper wheel works wonders for the chambers.

lookup that book, it's $15 for some invaluable knowledge.

mike
Old Aug 6, 2005 | 05:36 AM
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Re: Porting Heads

Where do you get this book from? I found some of his books but nothing on porting and polishing. Found one on cylinder heads but it was 60 bucks
Old Aug 6, 2005 | 05:44 AM
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Re: Porting Heads

Remember you need non ferrous bits for aluminum heads...but when you buy them they should say that they are for aluminum.
Old Aug 6, 2005 | 06:03 AM
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Re: Porting Heads

gotcha...anyone know where I can get that book?
Old Aug 6, 2005 | 06:43 AM
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Re: Porting Heads

Originally Posted by 93 4mula
gotcha...anyone know where I can get that book?
http://www.amazon.com/exec/obidos/tg...glance&s=books
He has other books that are very usefull like his camshaft book.
Old Aug 6, 2005 | 06:52 AM
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Re: Porting Heads

Thanks I appreciate it.
Old Aug 6, 2005 | 07:41 AM
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Re: Porting Heads

Originally Posted by 93 4mula
Where do you get this book from? I found some of his books but nothing on porting and polishing. Found one on cylinder heads but it was 60 bucks
He has two books on the subject, both available on Amazon.com. One is $14 and the other is $20. Do a search in books on "Vizard". They would be worth it if they were $100 though!

Rich
Old Aug 6, 2005 | 08:21 AM
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Re: Porting Heads

which one is better?
Old Aug 6, 2005 | 10:32 AM
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Re: Porting Heads

Research first and TAKE YOUR TIME! The right tools for porting are worth it to buy! You will want to get that set of 3 6" non ferrous deburring bits(SUM-900630), you'll also probably want to get the 3 2" non ferrous deburring bits(SUM-900230). Then to finish it off you'll need some sanding rolls and something to polish the chambers and exhaust bowls/runners with- I think this kit should be enough for you to finish a set of heads SAI-260012.

What will you be using to do the work? Do you have a compressed air source? I used an air powered die grinder for mine. You could also use an electric powered die grinder but they are a little harder to find. That and most don't have a way to vary the speed of the tool. Some people rig up a dimmer switch so they can change the speed though.

Good luck.

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