Good afternoon.
No, do not think about a turbo. You need an engine with the correct crankshaft, pistons and connecting rods. Yours does not have that.
Yes, a V6 would be a good option. You will need to change the complete power-train, engine and transmission. You will need to get a complete wiring harness for it as well since the other harness will not work.
You may want to consider upgrading the truck since this will be a very expensive update.
Roy
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Saturday, July 14th, 2018 AT 2:12 PM