Thread: BBC 3999289
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Old 04-26-2013, 01:03 PM
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Default Re: BBC 3999289
if it has 4-bolt mains it is an LS6 "over-the-counter" or "warranty" or "call it whatever you like"

Some LS7 crate engines had this casting number too. 4-bolt is the key in I.D.
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