Jump to content

L83 intake manifold swap

romeoortiz92

By romeoortiz92
in Engines & Drivetrain

 Share

Recommended Posts

  • Replies 31
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

truckguy82
truckguy82

I don't think there's a lot of power to be had with it   I only say that because I have an l86 and all I want is an lt1 or msd intake

Jon A
Jon A

The AFE intake will work with the LT1 or MSD manifold since you can swivel the tube on the box. I had to cut the end of mine off and use a new coupler but it worked fine other than that.

Posted Images

SouthernSilveradoGuy85 Senior Enthusiast

SouthernSilveradoGuy85

Posted
Posted

It would have to at least be the L86 6.2, so would have to be the Ecotec that's in the K2 trucks. Not sure how similar the Ecotecs are to the 6.2 that's int he Vette so it may be the same but it may not. The intake manifold would fit on the engine, but you'd have to get the 6.2 throttle body and the 6.2 air intake between the filter box and throttle body. The throttle body is a little bigger on the 6.2.

  • 3 months later...
ruby15z71 Enthusiast

ruby15z71

Posted
Posted (edited)

^^ The answer is yes you can fit the L86 intake and LT1 throttle body on an L83. You can also swap the LT1 6.2 camaro/vette intake manifolds on the L83 as well but it requires you to change a pulley and get a new belt as the lt1 intake manifolds are angled down vs being angled up. L86 and 6.2L lt1 are exact same motor as far as internals. only difference is the intake manifolds. Hope this helps.

Edited by ruby15z71
DTOMKIDD Enthusiast

DTOMKIDD

Posted
Posted

^^ The answer is yes you can fit the L86 intake and LT1 throttle body on an L83. You can also swap the LT1 6.2 camaro/vette intake manifolds on the L83 as well but it requires you to change a pulley and get a new belt as the lt1 intake manifolds are angled down vs being angled up. L86 and 6.2L lt1 are exact same motor as far as internals. only difference is the intake manifolds. Hope this helps.

So what all do you need for the LT1 6.2 manifold swap to work? Would you need a tune for it or would it be a bolt on and go?

 

Sent from my SAMSUNG-SM-G890A using Tapatalk

DTOMKIDD Enthusiast

DTOMKIDD

Posted
Posted

Tune and a mod with the idler pulley and fabbing up a intake pipe.

 

RT

Are you aware if an airaid MIT tube could work with it while keeping the stock air box?

 

Sent from my SAMSUNG-SM-G890A using Tapatalk

ruby15z71 Enthusiast

ruby15z71

Posted
Posted

I don't believe it's a custom fabricated deal. Haven't seen any issues with that yet. If you have a facebook go to the "Gen 5 Sierra/Silverado (2014+)" Facebook page and ask. A few people have done it.

truckguy82 Senior Enthusiast

truckguy82

Posted
Posted

I don't believe it's a custom fabricated deal. Haven't seen any issues with that yet. If you have a facebook go to the "Gen 5 Sierra/Silverado (2014+)" Facebook page and ask. A few people have done it.

Well the lt1 intake angles downward to clear the low vette hood. So I'd assume you wouldn't be able to adapt parts that go from truck airbox to corvette intake.

ruby15z71 Enthusiast

ruby15z71

Posted
Posted

Yes but I believe just the airaid MIT can be used. Again that I'm not sure about as I haven't looking into the swap myself. Just looked into the l86 intake swap with the lt1 throttle body

truckguy82 Senior Enthusiast

truckguy82

Posted
Posted

Yes but I believe just the airaid MIT can be used. Again that I'm not sure about as I haven't looking into the swap myself. Just looked into the l86 intake swap with the lt1 throttle body

Yeah l86 intake would be fine. The lt1 is considerably different height and angle though.

post-159507-0-29808100-1481657792_thumb.jpg

post-159507-0-35319500-1481657803_thumb.jpg

post-159507-0-29808100-1481657792_thumb.jpg

post-159507-0-35319500-1481657803_thumb.jpg

post-159507-0-29808100-1481657792_thumb.jpg

post-159507-0-35319500-1481657803_thumb.jpg

post-159507-0-29808100-1481657792_thumb.jpg

post-159507-0-35319500-1481657803_thumb.jpg

DTOMKIDD Enthusiast

DTOMKIDD

Posted
Posted

Yeah l86 intake would be fine. The lt1 is considerably different height and angle though.

Yeah, lt1 would need a custom fabbed intake. That's too severe of an angle to try and make work with the air box. L86 intake it is for me then lol

 

Sent from my SAMSUNG-SM-G890A using Tapatalk

truckguy82 Senior Enthusiast

truckguy82

Posted
Posted

Yeah, lt1 would need a custom fabbed intake. That's too severe of an angle to try and make work with the air box. L86 intake it is for me then lol

Sent from my SAMSUNG-SM-G890A using Tapatalk

I don't think there's a lot of power to be had with it

 

I only say that because I have an l86 and all I want is an lt1 or msd intake

  • Like 1
Jon A Senior Enthusiast

Jon A

Posted
Posted

The AFE intake will work with the LT1 or MSD manifold since you can swivel the tube on the box. I had to cut the end of mine off and use a new coupler but it worked fine other than that.

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • silveradosid
      Replacing 2.7L on 2021 Silverado with 2023 2.7L

      By silveradosid · Posted

      same here , i have a 2020 first gen and the cost to repair these engines far excedes replacement
    • KARNUT
      OCI, not when but why?

      By KARNUT · Posted

      But Grumpy I did show several subdivisions that had homes starting in the 170K range. If you bought a Townhouse or Condo you could go cheaper. Same with a car 3000 dollars in the 70s translates to around 20K today. There are several models at that price. You actually get more for the money. In the 70s I drove a 3000$ car bought a 28K home and made 4.50 per hour. Thank goodness for overtime. Today I could buy a 170K house drive a 20K car and make 25 dollars an hour operating the same machine today. The difference the house, car, machine would be better and have AC. And I wouldn’t be taxed on overtime. And statistically your wife works too. Easing the burden. I thought we agreed to disagree. I brought receipts earlier, showing examples. I think you’re more stubborn than me. I was done with this debate. 
    • Coastie05
      Replacing 2.7L on 2021 Silverado with 2023 2.7L

      By Coastie05 · Posted

      I’m definitely interested to hear the end result here. 
    • MASONV88888888
      Another 6.2L engine failure!

      By MASONV88888888 · Posted

      My 2025 Silverado 1500 had to receive a brand-new engine (long block) under warranty last month at only around 16,500 miles. Before the replacement, the truck repeatedly displayed "Engine Oil Level Low" warnings, even though the Oil Life Monitor still showed around 50% remaining after about 6,000 miles since my last oil change. After seeing the warning several times, I checked the dipstick with the engine cold, and the oil level was completely normal. The next day, the message escalated to "Add Engine Oil." At first, I assumed it was just a faulty oil level sensor, so I brought the truck to the dealership. After inspecting the engine, they found internal cylinder wall scoring and ultimately replaced the entire long block under warranty. Before this happened, I was planning to install a 4-inch lift and suspension upgrade on my truck. After needing a new engine at just 16,500 miles, I honestly don't see the point anymore. I also contacted GM to ask whether my vehicle qualified for a buyback, but I was informed that it does not at this time. Anyway, this experience has left me with serious concerns about the long-term reliability of this engine. I sincerely hope NHTSA expands the current investigation or recall to include 2025 model and performs a thorough inspection of affected vehicles. My biggest concern is that these engines may fail shortly after the powertrain warranty expires. If GM truly stands behind this engine, then at the very least, please consider extending the powertrain warranty to 10 years for affected owners. That would go a long way toward restoring customer confidence.
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Without exception but then I'm the odd duck, right? I know what goes into that test, how it is calculated and thus how to beat it. But EPA values are often not beaten by the general public and the government has in past years adjusted the means and methods to come to those values to more closely approximate "Joe Average".    The only real trick to beating that EPA average is don't drive like "Joe Average".    It's the same method you used to profit from "Economic Migration" and in doing so beat the 'stats'. But you, like me, are not "Joe Average".     The thing you don't seem to grasp is this "Purchasing Power Index" isn't forward looking. It doesn't predict what it going to be but looks backward and states what it was. They are not telling us what the THINK, they are telling us what they MEASURED. Example:    Wife says "I'm going to lose 40 pounds by Christmas". May she does, maybe she doesn't but the doctors office who weighed her when she made that statement and again at Christmas only REPORTS what the RESULT was. You and I can banter about what was possible and what aunt Tilly did till the cows come home but the result is the result. Arguing otherwise is.....irrational. That's all I'm saying. This isn't about:      What you are calling a 'Statistic' is a RESULT not a CALCUATION and as a result the RULE. Like gravity as a rule, it can not be broken. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...