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grant piston rings

I found a set of grant piston rings under the spare tire. I was going to put new rings on my car next week and was wondering if these are a decent brand.
Old 08-01-2002, 04:44 AM
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A well known manufacture....from the 50/60s.....
that's last century ....gud stuff back then, for American iron.

I didn't know they were still in biddness. How long have the rings been under that spare?
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Old 08-01-2002, 11:44 AM
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Grant rings don't seem to have the best rep necessarily. A search on the Shoptalk Type 4um pops up a note from Raby about Grant rings having too much end gap out of the box...

Deves seem to be good.

--DD
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Old 08-01-2002, 02:47 PM
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Deves are great, throw those grants as far as you can out of sight, they are good on some engines, but not type IVs/
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Old 08-01-2002, 08:53 PM
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Thumbs down

I had a set of Grant rings that came with my P/C set... They were wayyyyy out of whack, all too large.

Sad part is, from that whole pack, all I am using from it are the pistons. It would have been cheaper just to buy the pistons seperate.

Anyone want a set of brand new 96mm jugs?

Later,
Tom
Old 08-02-2002, 11:49 AM
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A few other people I talked to (1 restores MGs for a living) said grant are no good, thats probably why they were never installed by PO. Monday I will be odering from PP.
Old 08-04-2002, 08:05 AM
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ruddyboys,

Good choice, I listened to Jake and the others on STF and I am glad I did. I had Deves installed on my 96 JEs...my rebuild went smooth, and the motor is running strong...

Good Luck

Bob
Old 08-04-2002, 06:36 PM
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Mark Stephens sold them with his kits and look at him now.
I bought one of his 2056 top end kits just before he went out of business and have a real strong track car w/ grant rings. His head work was the ticket, unshrouding, port and polish.
Better to too much end gap than not enough.
Doug
Old 08-05-2002, 10:19 AM
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on the subject of rings

I unfortunatly did not get the memo on type 4 ring selection and I am paying for it now. I a installed the total seal gapless second ring on a set of stock euro spec KS p and c's. I have 2700 miles on the engine and it still will puff smoke @ idle during a long traffic light.

This goes against all of my previous type 1 experience. Not sure why Type 4's do not like the TS rings?


Total Seal said I should give it 3k to fully seat? I think I will be replacing them by 5K.


BTW. I have great/even compression. 145lbs+- 2lbs engine runs nice and cool. 24-26 mpg.

This is my data on the Total Seal issue. I have to wonder, Has anyone had Total seal rings to function and break in or is oil control @ the cylinder always an issue....????



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Old 08-05-2002, 11:05 AM
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I have had zero luck with total seals ina TIV engine on the street...They never seemed to ever break in....Also Greg @ FAT Performance has seen this as well.

A ring with too much end gap is terriable, crankcase pressure and burning oil is a huge problem......

It is Deves, or Hastings for me, and thats it, I have tried the others, they cost me time and money..
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Old 08-05-2002, 12:08 PM
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Jake,

Have you evered had them seat? Should I keep going or make the swap to the stock oem rings. OR swap to the deves? It is a totaly 100% stock engine. I want mpg/and longivity...?
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Old 08-05-2002, 01:59 PM
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Got so disgusted with them in 3 engines that I tore them down and replaced with Deves.....ho chances there, they break in on my dyno in most cases.
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Old 08-05-2002, 02:15 PM
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Found this old thread and was wondering if Grant pistons rings are still not recommended.

The machinest sold me a set after I had by 94mm pistons and cylinders cleaned and honed.

The top ring gap measured 0.35mm and the 2nd ring gap measured 0.25mm.
Old 08-08-2012, 09:45 PM
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I don't think Grant has made piston rings since the 1970's. There is a reason Grant only sells cheap steering wheels now.
Old 08-09-2012, 05:12 PM
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Grant Piston Rings has been in business since 1922 making only high quality piston rings continuously. Grant is active in the USA and about 60 other countries around the world. it offers high quality, great coverage at one of the most competitive price.
Old 02-18-2016, 10:57 AM
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