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Author Topic: Connecting rod bearings  (Read 656 times)
67 RS Ragtop
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« on: October 18, 2011, 10:44:37 AM »

My vehicle (early '67) has the L30 engine which I am rebuilding. I noted that the bearing suppliers offer standard and high performance bearings for this engine. I want to replace with the same bearings as it was built with, but have not been able to have the original bearings identified. The numbers on the rear of the con rod bearing shell are as follows: A circled capital A, followed by GMM400, with a number 58736 also. Can anyone ID this bearing so that I may replace it with the same type / quality?? Tahnks for any input.
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69z28302
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« Reply #1 on: October 18, 2011, 08:08:41 PM »

It's a factory GM bearing. JohnZ or someone on here would know the (supplier) manufacturer. I think you could only find some NOS one's for your application.

Mike
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JohnZ
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« Reply #2 on: October 19, 2011, 12:19:26 PM »

Those are original GM Moraine 400 bearings, which haven't been available for decades. Federal-Mogul has several lines of main and rod bearings, and their A-200 series bearings are equivalent to the original Moraine 400's.
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'69 Z/28
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67 RS Ragtop
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« Reply #3 on: October 19, 2011, 03:50:00 PM »

Thanks for the help - awesome site!!
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Gramps69Z
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« Reply #4 on: October 19, 2011, 04:04:27 PM »

Thanks for the help - awesome site!!


Welcome to CRG.
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