BoostJunky287

That’s the question. Buddy blew his motor in his 14 Sierra Denali and now thinking of buying a wrecked 18 Sierra Denali to replace his drivetrain upgrading the newer engine and the Tranny to the 8 speed. Also having extra parts for the car. How much of a pain is it to swap in the more modern drivetrain? Figured someone here would know better than me. Thanks!

LLLosingit

iTrader: (4)

If I'm not mistaken it will be pretty difficult, The 2018 engine is direct injection and I'm pretty sure the 2013 isn't, If that's the case it's possible to make it work but probably not practical. It would be much cheaper and easier to just get a replacement engine like the engine that's already there.

You would be talking about major rewiring and adapting to make sure everything electrical worked, Then you would have to make the fuel system work since they are completely different. Not worth the trouble in my opinion.

BoostJunky287

its actually a 14 does that make a difference?

383z

iTrader: (2)

You're going to have to find out of the 2014 is an LS based engine, because the 2018 is the new Gen V LT based engine if that's what your asking.

383z

iTrader: (2)

I tired to Google it real quick, but came up with conflicting info.
I'm pretty sure the 2014 has a LS based engine, because only the Corvette got the LT in 2014 and then the Camaro got it in 2015.
If that's true, it's not a easy drop in and go...

Maybe someone can chime in that is sure of that info.

warriorpluto

iTrader: (2)

All 2014 base trucks with 5.3 are LT engines. The 2018 engine will work.

LLLosingit

iTrader: (4)

I'm not sure what the difference is but I found that 2015-2018 5.3 are interchangeable and the 2014 was a one year only engine, That doesn't mean the 2018 engine won't work on the 14, More than likely It means you'll have to swap intakes or something like that.