Late 400 Main Bearings

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Re: Late 400 Main Bearings [Re: 440_Offroader] #2950164 08/03/21 08:34 PM 08/03/21 08:34 PM
Joined: Mar 2011 Posts: 3,090 Michigan A A727Tflite master
A727Tflite master A Joined: Mar 2011 Posts: 3,090 Michigan	Originally Posted by 440_Offroader 74 and later had a larger thrust bearing surface. I think you can use the older bearings in the newer blocks, but not vice versa. Both the block and crank would be different in the thrust area. Perhaps someone here, will know for sure. You are correct about interchangeability. The later block has a larger relief cut for the larger radius bearing. The crank has a larger surface are for the thrust.

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