Will Vortec 4.3 motor out of 1997 Blazer fit my 2005 GMC sierra 1500 truck
there were minor changes from 96 till the end of the 4.3. It will fit, but there are a couple sensors (cant think of them) that changed in size after 99, there are ways around this but it's doable. Now the 97 uses the older spider injectors with only 1 injector, after 99 they used 6 individual injectors. The 6 individual is a better system and if you can use yours.
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