283 file to fit rings

Lyn Smith · 01-18-2015, 02:11 PM

i have a street strip 283 that is .030 over.Can i file to fit some .040 over rings to the .030 bore?

Paul Precht · 01-18-2015, 02:23 PM

No, not a good idea, the motor will never seal properly.

Dragsinger · 01-18-2015, 02:53 PM

Lyn,

It seems to me what you suggest is reasonable. Consider the math, if you had a "cataloged" .030 file fit ring set it would be listed as .035

A .040 "non-file fit" will be very close to the same size because of not being a file fit set it has more "out of the box" end gap.

I think it is a valid consideration.

oldskool · 01-18-2015, 03:38 PM

I've read that some use non file fit rings that are .005 larger than your bore size. If they give you the gap you want, then the rings will give you a better seal than rings that have been filed a lot. The article also said that different brands of rings may vary slightly, which will affect end gap.

Even if they are just a tad too big, they may only need grinding a very small amount. What the guy was saying is that the less you cut off the ring the more of a perfect circle it will make, which will provide a better seal than a ring that has had a lot taken off of it. Makes sense to me.

Dave Ribeiro · 01-18-2015, 03:40 PM

Lyn,

I would give Gregg Luneack , a call @ 760-630-9094 .... I sure he can help you out and answer any Questions you have on Rings ????

Dwight Southerland · 01-18-2015, 06:01 PM

Quote:

Originally Posted by Lyn Smith

i have a street strip 283 that is .030 over.Can i file to fit some .040 over rings to the .030 bore?

Yes, depending on the actual bore size.

ss3011 · 01-18-2015, 06:39 PM

While you can file fit and get an acceptable gap, they may give you a higher than normal tension. Better to get the correct rings from the get go !

Jim B · 01-21-2015, 08:52 AM

Quote:

Originally Posted by Lyn Smith

i have a street strip 283 that is .030 over.Can i file to fit some .040 over rings to the .030 bore?

What do you intend to do with the oil ring expander and rails? Are they .040 over as well?

randy wilson · 01-22-2015, 04:37 PM

Don't laugh, but I put 4" top 043 ring in a 3.965 bore when they quit making that ring in that size. It ran. Doubt it was perfect.

01-18-2015, 02:11 PM	#1
Lyn Smith VIP Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 1,202 Likes: 284 Liked 974 Times in 195 Posts	283 file to fit rings i have a street strip 283 that is .030 over.Can i file to fit some .040 over rings to the .030 bore?

01-18-2015, 02:23 PM	#2
Paul Precht Senior Member Join Date: Dec 2001 Location: Elysburg, Pa Posts: 733 Likes: 358 Liked 327 Times in 121 Posts	Re: 283 file to fit rings No, not a good idea, the motor will never seal properly.

01-18-2015, 02:53 PM	#3
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,760 Likes: 5 Liked 99 Times in 60 Posts	Re: 283 file to fit rings Lyn, It seems to me what you suggest is reasonable. Consider the math, if you had a "cataloged" .030 file fit ring set it would be listed as .035 A .040 "non-file fit" will be very close to the same size because of not being a file fit set it has more "out of the box" end gap. I think it is a valid consideration. __________________ Larry Woodfin 471W

01-18-2015, 03:38 PM	#4
oldskool VIP Member Join Date: Dec 2014 Location: The Land of Bayous, Boudin & Crawfish Posts: 1,668 Likes: 223 Liked 747 Times in 362 Posts	Re: 283 file to fit rings I've read that some use non file fit rings that are .005 larger than your bore size. If they give you the gap you want, then the rings will give you a better seal than rings that have been filed a lot. The article also said that different brands of rings may vary slightly, which will affect end gap. Even if they are just a tad too big, they may only need grinding a very small amount. What the guy was saying is that the less you cut off the ring the more of a perfect circle it will make, which will provide a better seal than a ring that has had a lot taken off of it. Makes sense to me.

01-18-2015, 03:40 PM	#5
Dave Ribeiro VIP Member Join Date: Sep 2002 Location: Williamsburg, Va.---USA Posts: 1,827 Likes: 1,612 Liked 56 Times in 27 Posts	Re: 283 file to fit rings Lyn, I would give Gregg Luneack , a call @ 760-630-9094 .... I sure he can help you out and answer any Questions you have on Rings ???? __________________ Dave Ribeiro 1033 STK

01-18-2015, 06:39 PM	#7
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: 283 file to fit rings While you can file fit and get an acceptable gap, they may give you a higher than normal tension. Better to get the correct rings from the get go !

01-22-2015, 04:37 PM	#9
randy wilson Senior Member Join Date: Jan 2007 Location: N/A Posts: 882 Likes: 0 Liked 22 Times in 22 Posts	Re: 283 file to fit rings Don't laugh, but I put 4" top 043 ring in a 3.965 bore when they quit making that ring in that size. It ran. Doubt it was perfect. __________________ don,t have one