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#1
12-11-2007, 01:53 AM
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Factory Main Bearing Numbers?
Anyone know where I can find a list for factory main bearing numbers? I would like to know what bearings are in our 455.
Thanks, Jim
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1973 Trans Am 4-Spd 455, #'s Matching 1973 LT/RS/Z28, 4-spd, 28K Milies, #'s Matching 1972 Camaro 4-Spd 1975 Camaro 2000 C5 Coupe |
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#2
12-11-2007, 12:05 PM
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I take it this is for the 73 455?
9772754 1st 3 9772757 thrust 9770927 rear Moraine 400 bearing with groove out of Parts List book
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#3
12-11-2007, 05:13 PM
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John,
Thanks for getting back to me. The engine is a '74, YY 485428. The bearing in question is numbered as follows: 22H3,57501, GMM400. Does this make any sense? Thanks, Jim
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1973 Trans Am 4-Spd 455, #'s Matching 1973 LT/RS/Z28, 4-spd, 28K Milies, #'s Matching 1972 Camaro 4-Spd 1975 Camaro 2000 C5 Coupe |
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#4
12-12-2007, 02:23 AM
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The GMM400 is the Moraine 400 bearings, which are the good ones Pontiac put in from the factory.
I'd say they are the originals.
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#5
12-12-2007, 12:31 PM
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Thanks John. That's my engine. Is it quite rare to see standard, factory bearings? I don't think I ever have on a running engine of this vintage. Especially one that looks so damn clean....
-Jason
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1999 Trans Am Ws6 Slp Lid, K&N, Smooth Bellows, Ls6 intake, Spec Clutch, Spec Alum. Flywheel, Spintech Cat back. 1970 Firebird Esprit 455 Pro Street project |
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