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4.3 liter motor swap.

Can I swap a 1988 4.3 with a 2016 4.3. I have the alpha 1 drive as well.
Yes absolutely. Are you doing a full bobtail swap or just long blocks?

There are some details like intake manifold differences front accessories on later engine will be serpentine vs V belt

In short no issue but there might be some details to work through depending on how much of the newer engine u have

Newer engine will pick up some hp with vortec heads
 
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