1986 GMC 1/2 Ton

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juggie#1

08-10-2007, 01:53 AM

I'm Installing a 350 engine, but I need to know what year it is so I can get some Part's, and the (spec And touque) The Number on the block Is 10066032, and the othe one below the alternator Is 1M1223-9vP. Thank In advance

maxwedge

08-10-2007, 03:36 PM

Try Mortec.com for casting number info.

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