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Old 04-21-2009, 01:29 AM
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question on speed pro pistons

I need to buy a set of rings for a set of speed pro pistons. I can't find the part number in Jegs or Summit. The part number is L2239NF60. I know they are for a 427 with closed chambered heads. BUt I have had no luck in finding the part number. Any help would be greatly appreciated. THANKS

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Old 04-21-2009, 07:47 AM
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I found these on Jegs.

Sealed Power #844-R9902.060
Std Tension Piston Ring Set
Oversize: .060"
Top Ring: 1/16"
Second Ring: 1/16"
Oil Ring: 3/16"

They also have these with 1/8" oil ring. Measure yours and see which oil ring it will need.
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Old 04-21-2009, 07:57 AM
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Speed Pro- R9904- Std, 30, 40, 60
Speed Pro file fit- R9745- 5, 35, 65

Last edited by cobalt327; 04-21-2009 at 08:03 AM.
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