This 3-1/2" bore wrinkle black cylinder set is for 80" or 89", 1984-'99 big twins are 5.550" in length.
Individual cylinders and cylinder sets without pistons are bored slightly under normal size and are not honed.
51-1014-cylinders-bt-3.625-big-bore-36-99-big-twins-installation-instructions.pdf
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