350 head swap.
April 29th, 2014, 06:23 PM
#1
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Join Date: Sep 2011
Location: Saskatoon SK Canada
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350 head swap.
I know this has been raised before but I can't find it. I want to put 350 heads on a 403, I know about the head bolt sizes, but I recall someone saying the coolant passages needed to be drilled out to allow flow. True??
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