Nope, that is just a myth. I have seen tests results showing there is no
date cutoff, thin castings are just random in all year 440s.
>From: Leo Jormanainen <lexa@xxxxxxxxxxxxxxx>
>>Hi,
>
>'76 and later 440 cyl. blocks are throw away blocks, thin wall castings.
>Max. over bore is 0.020".
>
>Leo
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