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  #1  
Old 08-11-2022, 09:19 PM
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65madgoat 65madgoat is offline
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Default SEEKING: 30 over main bearings for 455 crank

WANTED:

Unsure if anyone is still making them, but anyone have a source for 030 under main bearings for 3.25" cranks?

Friend is seeking 030 main bearings for his 455 and asked if I could track some down online as he is not an internet guy. See that they may be discontinued....


Thanks.


Last edited by 65madgoat; 08-11-2022 at 09:31 PM.
  #2  
Old 08-11-2022, 09:39 PM
Joe's Garage Joe's Garage is offline
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Default Rockauto show them for $123.79/set

Sealed Power 4221M

https://www.rockauto.com/en/catalog/...n+bearing,5220

  #3  
Old 08-11-2022, 10:24 PM
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65madgoat 65madgoat is offline
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Thanks for the reply... BUT:

"SEALED POWER Part # 4221M is not currently available and has been removed from your shopping cart"

  #4  
Old 08-12-2022, 07:04 AM
gtobob67 gtobob67 is offline
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https://www.jegs.com/i/Sealed-Power/...1M-30/10002/-1

  #5  
Old 08-12-2022, 07:05 AM
max 93 max 93 is offline
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Summit says they have 5 in stock

  #6  
Old 08-12-2022, 11:14 AM
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65madgoat 65madgoat is offline
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Summit DOES NOT have any in 030 under:

https://www.summitracing.com/parts/slp-4221m30



Jegs does NOT have any either and Sealed Power told the rep they are obsolete/no longer made

  #7  
Old 08-12-2022, 11:19 AM
tom s tom s is offline
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There was a guy on ebay selling some,dont know quality.Tom

  #8  
Old 08-12-2022, 11:39 AM
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65madgoat 65madgoat is offline
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Searched ebay but unable to find anyone. Please send link if you come across it. Thanks

  #9  
Old 08-12-2022, 01:06 PM
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69FIREBIRD76MM 69FIREBIRD76MM is offline
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Default Bearings

https://www.ebay.com/itm/25493423741...mis&media=COPY

Looks like this are not for 455 PontiAc..oops.


Last edited by 69FIREBIRD76MM; 08-12-2022 at 01:19 PM.
  #10  
Old 08-12-2022, 01:24 PM
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65madgoat 65madgoat is offline
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Called EngineTech.

Those ebay bearings are not for a 455 - they are for a 3.8L.

They never made bearings in 30 under.


Next.....

  #11  
Old 08-12-2022, 04:55 PM
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Jack Ferris Jack Ferris is offline
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Good luck. I see them pop up on eBay now and then from someone's stockpile.

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  #12  
Old 08-13-2022, 09:28 AM
pontbil pontbil is offline
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King Engine Bearings, Inc.
Okner Parkway 26
Livingston, NJ, 07039
USA

Phone: 1-973-857-0705
Toll Free: 1-800-772-3670
Fax: 1-973-857-3228
Email: inquiry@kingbearings.com

  #13  
Old 08-13-2022, 10:32 AM
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PAUL K PAUL K is offline
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Quote:
Originally Posted by pontbil View Post
King Engine Bearings, Inc.
Okner Parkway 26
Livingston, NJ, 07039
USA

Phone: 1-973-857-0705""
Toll Free: 1-800-772-3670
Fax: 1-973-857-3228
Email: inquiry@kingbearings.com
King doesn't make main bearings for our 3.25 main engines. Just the 3"

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  #14  
Old 08-14-2022, 08:50 AM
pontbil pontbil is offline
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MB5849HP

  #15  
Old 08-14-2022, 10:35 AM
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30 under though?!?

  #16  
Old 08-17-2022, 12:50 PM
mgarblik mgarblik is offline
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I just talked to my direct contact at King bearings. They do not have -30 bearings for a large journal Pontiac. He went on to say there is ZERO possibility of them ever making them. I believe him because it took us 15 years to convince them to make high performance small journal main bearings. That's going to be a tough one to find. Please share if you somehow find a source. Looks like finding another crankshaft may be easier.

  #17  
Old 08-18-2022, 10:54 AM
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Gary H Gary H is offline
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I've got a set of Sealed Power 4221M .030 that I'll sell you. PM sent

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