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Old 09-02-2012, 04:26 PM
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robhardy robhardy is offline
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according to the xf stamp was only used on the 1970 455. until i get the engine pulled that's all i've got to go on. found another site that went as far as to break it down to the h.o. specifically. i'm going to assume i'm working with a 1970 455 h.o. until i get the engine out. not planning on ordering any parts until i see what's wrong. i was more concerned that i had 455 heads on a 400 block and i didn't know if that was just a "bolt on" modification. thanks for the link, i may be able to get back there with a flashlight and see some of the casting numbers with the engine in.
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