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Bob Bidonde · 03-22-2024, 07:59 AM

I have been running Model B engines in my Model A's for many many years. Never had a block crack, but I did have one throw a connecting rod threw the block. A stud securing the #4 Connecting Rod Cap failed. This failure could have been in a Model A engine, so it is not germane to the Model B engine.

The Model B engine is much more durable than the Model A engine because it has larger bearings and pressurized oil feed to mains. If you find a Model B in rebuildable condition, use it.
See this post https://www.fordbarn.com/forum/showthread.php?t=336697

03-22-2024, 07:59 AM	#4
Bob Bidonde Senior Member Join Date: May 2010 Location: Long Island, NY Posts: 3,488	Re: Model B engine in an A I have been running Model B engines in my Model A's for many many years. Never had a block crack, but I did have one throw a connecting rod threw the block. A stud securing the #4 Connecting Rod Cap failed. This failure could have been in a Model A engine, so it is not germane to the Model B engine. The Model B engine is much more durable than the Model A engine because it has larger bearings and pressurized oil feed to mains. If you find a Model B in rebuildable condition, use it. See this post https://www.fordbarn.com/forum/showthread.php?t=336697 __________________ Bob Bidonde