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Generation III Internal Engine
1997-2006 LS1 | LS6
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Old 10-04-2004, 11:04 PM   #1
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Default Engine Bearings for LS's

I bought a set of Clevite 77 rod and main bearings some time ago for an LS6 motor that I was building up from basically new GM components; block, crank, cam, etc. The main bearings that I got from the parts house are a Clevite 77 #MS 2199 P...does anybody have a source for these? Every time I ask for them I get a look like I was from the moon...even from the parts house that sold them to me (seems they changed ownership this past year).
I am also looking for a good source/price for head gaskets...FelPro has a high performance product but I am not sure that they are any better than the stock GM gaskets. Thanks...
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Old 10-05-2004, 09:30 AM   #2
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I am not sure on Clevite numbers but the Federal Mogul numbers are rod 8-7100CH, main 152M.
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Old 10-05-2004, 12:59 PM   #3
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Give us a call we have them in stock.
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Old 10-05-2004, 05:22 PM   #4
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Nick,

What about using 152M-1s instead?


http://www.ls1tech.com/forums/showth...eck+clearances

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Old 10-06-2004, 12:32 PM   #5
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152M is the STD size Federal Mogul Main Bearing

152M1 is the -.001 Federal Mogul Main Bearing

As I understood the above post he needed STD Mian Bearings so the 152M would be his part number in Federal Mogul.
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Old 10-09-2004, 02:49 AM   #6
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Default 152Ms give greater clearance

Hi,
I ended up using stock Chevy inserts because the 152M's gave ~3/4 thou greater clearance than Std Chevy bearings.
Steve

Quote:
Originally Posted by Nick@AP-Engineering
152M is the STD size Federal Mogul Main Bearing

152M1 is the -.001 Federal Mogul Main Bearing

As I understood the above post he needed STD Mian Bearings so the 152M would be his part number in Federal Mogul.
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Old 10-09-2004, 02:49 AM
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152m, 152m1, 87100ch, bearing, bearings, brgs, clevite, engine, federal, ls, ls1tech, main, mogul, rod, size


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