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are all 706 heads made by Castec?

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Old 07-12-2012, 10:26 AM
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Default are all 706 heads made by Castec?

I suspect the answer is no, but I can't find a definitive answer.

I know how to determine if the head is made by Castec assuming the valve cover is off based on here:
http://ww2.justanswer.com/uploads/Bl...t_loss_5.3.pdf

However, is there a practical way to determine if the head is a Castec while assembled as a long block?

Thanks



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