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Author
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Topic: Ring Gaps
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Daniel Jones
Gearhead Posts: 813
From: St. Louis, MO
Registered: Aug 99
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posted 01-03-2004 05:10 PM
   
I'm trying to get rings for my 5.0L HO rebuild and am having no luck. The block is standard bore with no wear and I'm looking for plain rebuilder type rings. The 5.0L OEM rings are low tension metric rings, BTW. Standard 4" bore size rings show a 21 to 22 thousandths end gap which is too large. No one seems to be able to come up with the file-to-fit 4.005" rings either. I even tried Summit. We've simply deglazed the block and the original cross hatch is visible. Alex recommending standard rebuilder iron rings, staying away from harder moly or chrome rings. The parts store rings show up as economy or premium in the computers with no mention of material. Even the instructions in the box make no mention. I assume the economy are plain iron rings and the premium are moly but I can't get the metric rings in a plain cast iron locally or from Summit (claims they are made only in moly). I can get the E-458K "premium" Sealed Power set in standard (too large a gap) or in 20 thousands over. Is 20 thou over too large to file fit back to standard? It seems like the larger bore rings won't be round in a smaller hole. Dan Jones
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 01-03-2004 07:17 PM
.020-.022 is ok for your street engine Dan.
The OE non filled block will expand more than you think.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,&'03
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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Daniel Jones
Gearhead Posts: 813
From: St. Louis, MO
Registered: Aug 99
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posted 01-03-2004 09:37 PM
Are the E-458K "premium" Sealed Power rings acceptable? I think they're moly. Dan Jones
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 01-03-2004 11:49 PM
They will work fine. Just take more time to break in and seat so expect some oil usage and smoke.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,&'03
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
Daniel Jones
Gearhead Posts: 813
From: St. Louis, MO
Registered: Aug 99
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posted 01-04-2004 11:47 AM
It looks like I might be able to locate the E-458X cast iron Sealed Power rings locally (won't know until Monday). I've also found some mail order sources that have file-to-fit Speed Pro moly rings sets (4.005" bore for the 1.5mm/1.5mm/4mm rings the 5.0L pistons require). Dan Jones
IP: Logged |
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