It's 2wd. LT1 & L86 engines are identical besides the Intake, Oil Pan, FEAD, & Camshaft. I'm only using the LT1 longblock.....The truck will be just like factory besides the AFM delete Camshaft & upgraded lifters.
Yukon XL
- Thread starter clinebarger
- Start date
It's 2wd. LT1 & L86 engines are identical besides the Intake, Oil Pan, FEAD, & Camshaft. I'm only using the LT1 longblock.....The truck will be just like factory besides the AFM delete Camshaft & upgraded lifters.
2WD is such a rare find here. Dealers near me all order everything with 4WD. Was this year part of the injector TSB? Mine had one injector die but since my state isn’t a CA emissions state the extended warranty on the injectors didn’t cover it.
oh wow, I did not know that they still made 2wd that late. I suppose is opens up options easier if not 4wd. Nice. I would say good luck, but something tells me you dont need it.
Please tell me you're going to keep those Camaro engine covers on just to mess with people! 
BrendanC
$100 site donor 2024
2wd makes it much easier to change those fluid filled motor mounts…. i’ve had to do 3 or 4 4x4 trucks with the atomic poly mounts and i curse it every time.
I'll update you guys soon as I get something done......On vacation now, Went up through the Grand Teton park & all the way through Yellowstone....Now at Mt. St. Helens, Technically Kelso, Washington for the night & will see the mountain tomorrow.
Cocoa & Dune I'm pretty sure. Paint is White Frost Tricoat.
Cocoa & Dune I'm pretty sure. Paint is White Frost Tricoat.
Nothing against 4wd, But I've never needed it & don't put myself in positions to need it.
4WD
$50 site donor 2025
Our 2017 has that paint and interior - both still really good …
Safe travels Chris …
Last year we took my dad's '03 Tahoe with a stock LQ4/Built 4L65E & 3.42 gears.
Got totaled @ 6 months ago while I was building a '09 Yukon SLT/XFE (Also bought from a customer after the Aluminum AFM 5.3L ate a lifter)
Has a Gen IV iron 6.0L built to LS2 specs with a BTR stage 1 truck cam/Built 6L80E & 3.08 gears. Sold it to the old man as he was stressing over the '03.
The '03 averaged 16mpg & the '09 averaged 18mpg while having 50-70 more HP.....Think it would've done better with 3.42's taking advantage of the 6L's ratio's.
It will be interesting to see what the L86/10L80 will do....Not sure of the rear ratio.
4WD
$50 site donor 2025
It’s going to be a another step up on the road …Last year we took my dad's '03 Tahoe with a stock LQ4/Built 4L65E & 3.42 gears.
Got totaled @ 6 months ago while I was building a '09 Yukon SLT/XFE (Also bought from a customer after the Aluminum AFM 5.3L ate a lifter)
Has a Gen IV iron 6.0L built to LS2 specs with a BTR stage 1 truck cam/Built 6L80E & 3.08 gears. Sold it to the old man as he was stressing over the '03.
The '03 averaged 16mpg & the '09 averaged 18mpg while having 50-70 more HP.....Think it would've done better with 3.42's taking advantage of the 6L's ratio's.
It will be interesting to see what the L86/10L80 will do....Not sure of the rear ratio.
I rented a 2019 Yukon XL Denali 2WD for a trip to Yellowstone a few years back, it was a great vehicle for a roadtrip. I really liked the compartment behind the radio for hiding my wallet and handgun. My only minor complaint was that it didn’t have lane centering like my Toyota so it was a bit more tiring to drive on the longer days on the road.
Got the LT1 tore down & inspected....Looks great!
Other than traveling to Yellowstone in October. In your defense, 4wd drive nothing in ice.
Progress.....
the pins are AFM delete?Progress.....
Part of it, Yes....They block oil pressure from acting on the Valley Cover. Them being absolutely necessary is debatable when reusing the AFM Valley Cover.....They are necessary when using a 6.6L L8T Valley cover as the L8T block is not drilled for AFM Lifters meaning there no seals to seal the towers.
Some LT-1 trivia.
That's a great engine and I have one in my 2014 Corvette. Even the factory cam has a nice idle to it. Good luck on the installation and smart move deleting the AFM.
Swapped out the Valve Springs, New Valve Guide seals, Cleaned all the Intake Valves (Build up not bad), & Light lap-in......New head gaskets, Head bolts.
L86 ready to come out.
