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Old 04-10-2019, 04:13 PM   #5
Awann99
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Join Date: Jan 2018
Location: TN
Posts: 263
Quote:
Originally Posted by webfoot View Post
A 5.3 will also bolt right up to your th350, FYI. You will just need a different flexplate, and advance adapters sells these.

I'd go over your swap build carefully and price out how much the build will cost for a gain of 7 mpg max.
I feel like it would be pointless to go through the work of putting a LS in the truck without a modern transmission. I could swap in a 700r4 and put a stand-alone fuel injection kit on the 350 to gain a few MPG but the cost for that would be almost as much a full ls swap. I will be commuting for the next two years minimum so I want the gas milage most.
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