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Old 07-11-2014, 04:10 PM   #1
77K10Silverado
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Join Date: Jul 2014
Location: Winston-Salem, NC
Posts: 561
Cast Iron or Steel?

Little help here.. I plan to pull my original 350 4bbl from my 1977 K10 for a rebuild but was curious what type of crankshaft came factory. Cast iron or steel? So far I was able to get 010 off the side of the block which tells me its a 4 bolt main. If I need to get more numbers I can. Any help would be appreciated!
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