Thread: 396 L78 block
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Old 02-16-2020, 12:53 AM
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I've got a 854 L78 block. I removed the center plug and checked the space between the cylinders with a pencil and it went through. I don't think I would bore this block to 4.250.
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1969 Camaro RS/SS396 (427) 4 speed
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