Thread: Any idea what the cast# on a B20 head is?
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Old 03-08-2005, 03:52 PM
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Snoopy
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Originally Posted by Master Yodub
it should be a PR4 casting, same as the LS. However, there is one B20 head that actually has 84mm combustion chambers, but I don't know the casting stamp #.
i think that would be P8R-xx
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