Need new 6.2 L86 Engine...but indefinite backorder???

[OR VietVet]

Then, like @B-train said, get a used engine from some source. They even come with warranties.

 

[B-train]

What happened to your motor BTW?

 

[poofyo101]

coolant is leaking into the block because the steel piston sleeve isn't sealing properly.
according to tech

 

[TollKeeper]

Find a good machine shop, and have them put new piston liners in, plane the deck, multi angle the heads, and replace the cam bearings, then have a engine shop build it out for you. With new piston liners, you can put in stock size pistons, just a matter of the crank at that point.

 

[THarber]

Look towards reputable companys like Texas Speed, LME, Thompson Motor Sports, etc. Sounds like you are going to do the work yourself so all you really need is a short block.

 

[avalonandl]

Where you located?

Jasper has long blocks I am sure. so does

Big 3 Engines and Transmissions

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[tom3]

My previous dealer would have put some GM cooling system sealer tabs in it and called it fixed. Hope you get a better result!

 

[NoYukonYet_1Jeep]

I have to imagine there is some sort of priority labeling with where GM is sending new motors these days. My 2023 Yukon Denali blew two rod bearings at 3600 miles - exactly a month to the day from when we picked it up from the dealer. I figured months for a new motor but they had mine shipped and installed in just over 4 weeks. Maybe worth noting we did pay cash for our vehicle. Maybe GM has less of an incentive to repair a leased / financed vehicle?

Good luck tracking down a suitable replacement. Seems rebuild could definitely save you some wait time here

 

[Geotrash]

Where you located?

Jasper has long blocks I am sure. so does

Big 3 Engines and Transmissions

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Nice. They even have a sale on the L86. https://www.big3engines.com/store/L...-ASSEMBLY-2014-AND-UP-GM-CHEVROLET-p475769607

 

[davebarky]

You could probably save a lot of money by buying a good used engine from a reputable used auto parts place like LKQ. They typically offer good warranties on lower mileage units.Car-part.com is another good place to look. I just put a 95,000 mile engine in my 2012 Yukon XL Denali, cost me $3500. I upgraded to a non AFM 6.0 out of a 2014 Silverado 2500. Tuned the computer for the mew engine, runs like a champ on regular gas.