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Re: 7 Piece Piston Ring Set with Heptagonal Tensioner???
[Re: MadMopars]
#2581428
11/22/18 05:32 AM
11/22/18 05:32 AM
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Joined: Aug 2003
Posts: 43,223
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,223
Bend,OR USA
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That looks like a set of NHRA legal cheater rings back when you had to run the stock ring widths in the pistons, you could run a spacer in the groove to run a narrower ring or a gapless ring set. The hex ring looks like it is a spacer tensioner to run a narrow width low tension ring in a stock depth ring groove  Maybe you can figure it out from the part number
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 7 Piece Piston Ring Set with Heptagonal Tensioner???
[Re: Cab_Burge]
#2581689
11/22/18 09:11 PM
11/22/18 09:11 PM
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Joined: Jan 2003
Posts: 1,292
Tucson AZ,
MadMopars
OP
pro stock
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OP
pro stock
Joined: Jan 2003
Posts: 1,292
Tucson AZ,
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Cab, These came from that 413 I picked up so I don't know what brand or part number they are. Much to my surprise, they rebuilt this motor ages ago and never ran it. New pistons, bearings, etc. It also has a new Crower X31F cam in it. I'm thinking I'm going to clean everything up, put it together and give it a thrashing in one of the cars. That being said, any reason not to use these rings if I already have them? Where do these rings fall in relation to performance? Better than a standard set but not as good as a modern set? 
Last edited by MadMopars; 11/22/18 09:22 PM.
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Re: 7 Piece Piston Ring Set with Heptagonal Tensioner???
[Re: MadMopars]
#2581698
11/22/18 09:42 PM
11/22/18 09:42 PM
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Joined: Sep 2014
Posts: 4,457
Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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Cab, These came from that 413 I picked up so I don't know what brand or part number they are. Much to my surprise, they rebuilt this motor ages ago and never ran it. New pistons, bearings, etc. It also has a new Crower X31F cam in it. I'm thinking I'm going to clean everything up, put it together and give it a thrashing in one of the cars. That being said, any reason not to use these rings if I already have them? Where do these rings fall in relation to performance? Better than a standard set but not as good as a modern set? No reason not to use them. As for those rings against a modern ring...a bunch of the power found in modern rings comes from piston groove geometry. It's sooooooo much better now that it's not even close. I'd run them and enjoy beating on it.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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