XXX block?
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Joined: Jan 2008
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XXX block?
Does anyone really know the difference in the 5.0 ho blocks xxx yyy? i look around and everywhere i see controversy, all i see that seems consistent is that the yyy is stronger due to the higher nickel content.
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Matt's 95 Stang
5.0L (1979-1995) Mustang
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Oct 5, 2015 07:16 AM
