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FE Technical Forum / Re: 1964 390 block with extra main webbing and cross bolt bosses
« on: Today at 11:26:18 AM »
There is about a 99.9% chance that it doesn't have 427 cylinder cores but, it could have a little thicker cores in it.
Are there any markings on the rear of the block? A picture of that area would help, a lot. Of course a sonic test will tell you what you have to work with. Also, you can pull the expansion plugs and measure between the cylinder walls with drill bits or, I use Allen wrenches and get a good idea of the thickness of the walls by how much space there is between them.
Are there any markings on the rear of the block? A picture of that area would help, a lot. Of course a sonic test will tell you what you have to work with. Also, you can pull the expansion plugs and measure between the cylinder walls with drill bits or, I use Allen wrenches and get a good idea of the thickness of the walls by how much space there is between them.