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455 to 425 th400 swap?
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03-27-2007, 08:23 AM
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Oldsmaniac
Senior Member
Join Date: Oct 2005
Location: NJ
Posts: 385
It will bolt but the flywheel bolt pattern is different so you need to use the 425 flywheel. The 67 also used the switch pitch and the later is not. This should not be a problem.
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