Jim Mac
09-21-2005, 10:54:00 PM
simple question, are the exhaust seats hardened on a set of 781 heads cast in 74? thanks Jim
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View Full Version : 781 head Question Jim Mac 09-21-2005, 10:54:00 PM simple question, are the exhaust seats hardened on a set of 781 heads cast in 74? thanks Jim badazz81z28 09-21-2005, 11:13:00 PM All BBC production cylinder heads manufactured after 1971 should have hardend seats |