Grinding cast iron?
Thread Starter
Senior Member since 1492
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Grinding cast iron?
What grinding tips to use on a cast iron exhaust manifold? The usual grinding stones? I have a carbide cutter ($$) that I used on an aluminum intake but am afraid to screw that tip on cast iron.
What should I use?
Thanks
Len
What should I use?
Thanks
Len
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Re: Grinding cast iron? (markdtn)
stone's or finer cutter's than alum. stone's take a little longer but don't grab
as much(take off) they also leave a nicer finish after first cut, are you porting
or dressing-up (detailing)
as much(take off) they also leave a nicer finish after first cut, are you porting
or dressing-up (detailing)
Thread Starter
Senior Member since 1492
Joined: Aug 2000
Posts: 87,914
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Grinding cast iron? (comp)
Thanks. I want to grind down a 1in x 1 in bump that is on the inside of each tube on stock BB manifolds.
Thread Starter
Senior Member since 1492
Joined: Aug 2000
Posts: 87,914
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Grinding cast iron? (1970 Stingray)
Here's what I'm attempting to grind lower. Removing that little mountain the the center of each port should help flow a little, or so I'm told.
Race Director
Joined: Nov 2000
Posts: 11,872
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From: Waterloo ontario Canada
Re: Grinding cast iron? (1970 Stingray)
I would use a burr in my die grinder for this job. I thought you were trying to polish the outside. The burr cuts quickly. Cast iron is soft unless it is white cast iron and that can not be cut. Yours is probably nodular cast iron, a very soft material.
Drifting
Joined: Nov 2002
Posts: 1,676
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From: Loveland, CO
Re: Grinding cast iron? (1970 Stingray)
Looks like the same bumps I have in my 69 big block. Except yours do not have the air pump injector tube coming through them like mine. You're lucky. Grind them off unless you plan to install an air pump.
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From: Zionsville, PA NRA Life Member
St. Jude '03-'04-'05-'06-'07-'08-'09-'10
Re: Grinding cast iron? (norvalwilhelm)
I would use a burr in my die grinder for this job. I thought you were trying to polish the outside. The burr cuts quickly. Cast iron is soft unless it is white cast iron and that can not be cut. Yours is probably nodular cast iron, a very soft material.
:iagree: WEAR SAFETY GLASSES Don't risk eye damage :nono:
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