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Michael Lewis · 03-29-2008, 06:30 AM

Ford 391 engine Has your engine been rebuilt? If so it is possible that the rebuilder used the camshaft from another engine. Some Ford engines have interchangeable parts but depending on certain factors, the firing orders were different.

03-29-2008, 06:30 AM	#3
Michael Lewis New Member Join Date: Mar 2008 Posts: 2	Ford 391 engine Has your engine been rebuilt? If so it is possible that the rebuilder used the camshaft from another engine. Some Ford engines have interchangeable parts but depending on certain factors, the firing orders were different.