2017 Tahoe engine swap, advice appreciated

[Doubeleive]

I called the GM technician. They said when you do a delete the changes in the computer that are needed will be detected by California smog stations at time of smog and be an instant fail.
Great.
Last Chevy I buy that’s newer than a 73. These companies are so big they can put out a new design with no real world testing or they do test and know that they will have a %30 failure rate and we can’t do anything about it. Then they charge us to fix it. Companies like this don’t get my approval and definitely not my praise.

that's not true, you can get a canned tuner that is c.a.r.b legal for california and turn it off, I have mine turned off (not deleted) and no problem with smog because the tune is carb legal.

 

[Geotrash]

No way in hell that thing needs a whole new engine. New lifters and pushrods and she'll be good to go. Cam damage is unlikely but possible. If it were mine, I'd tear it down and have a look. You can use factory parts, switch off AFM with a CARB-certified tune, and run it another 250K, easy. If you're on a tight budget and get the parts from RockAuto, I'll bet you can get it humming like new again for $500 in parts and a weekend. You can borrow all of the specialty tools you'll need like the harmonic balancer puller and PS pump pulley puller for free from your local Autozone.

 

[SpyShops212]

No way in hell that thing needs a whole new engine. New lifters and pushrods and she'll be good to go. Cam damage is unlikely but possible. If it were mine, I'd tear it down and have a look. You can use factory parts, switch off AFM with a CARB-certified tune, and run it another 250K, easy. If you're on a tight budget and get the parts from RockAuto, I'll bet you can get it humming like new again for $500 in parts and a weekend. You can borrow all of the specialty tools you'll need like the harmonic balancer puller and PS pump pulley puller for free from your local Autozone.

You have to inspect the camshaft with a camera or specific tool to see if there was damage. If you got the check engine light then most likely your camshaft is damaged. I didn’t get the check engine light or store codes, just the tick so my camshaft did not get damage. You may have caught it before the camshaft got damaged. You don’t want to drive it after the camshaft got damaged because broken pieces from the camshaft may be in your engine. You could send the oil sample out to get checked as well.

 

[Ivanhoe]

My 2012 tahoe lifter failed and I changed lifters and cam. It can be done quite cheaply (compared to new motor) over a weekend, I had an old mechanic supervising and I had a rough idea what to do from youtube videos and excellent support from this forum and others.
I got a texas speed kit with new non afm lifters, new non afm cam ( but still works with vvt) new gaskets, new timing chain and new oil pump. Other companies do these kits as.well and much cheaper than any option I had here in Canada. I had a local shop tune the afm off prior to starting as I could run the engine straight away after.
It cost me about C$1500 with all the extra maintenance bits I added for long term piece of mind.
30000kms later and it's running strong.

 

[ivin74]

I called the GM technician. They said when you do a delete the changes in the computer that are needed will be detected by California smog stations at time of smog and be an instant fail.
Great.
Last Chevy I buy that’s newer than a 73. These companies are so big they can put out a new design with no real world testing or they do test and know that they will have a %30 failure rate and we can’t do anything about it. Then they charge us to fix it. Companies like this don’t get my approval and definitely not my praise.

Don't do the delete then, just change the lifters and the lifter trays. Inspect the cam and if you see any scaring or damage replace aswell. Please buy oem parts, DONOT buy aftermarket parts.

If you don't do the delete you will save money, run synthetic oil you will be fine for another 150k miles.

 

[THarber]

Thats an easy weekend job to pull heads and repalce lifters and pushrods. Don't buy into the new engine BS. If it were mine, I'd pull heads and see what you really have before even considering a new engine. If could be as simple as a loose rocker arm.