What did you do to your NNBS GMT900 Tahoe/Yukon Today?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Charlie207

Full Access Member
Joined
Apr 13, 2021
Posts
1,688
Reaction score
3,372
Location
LFOD, New Hampshire
Actually, I can't start it until the VVT-delete 5-wire to 3-wire cam sensor adapter arrives from the jungle warehouse. How come none of you scoundrels warned me about that?

Anyways, the oil pump is primed, and the updated BBP tune is loaded into the PCM/TCM. New torque converter and a bunch of other new bits and bobs, but I reused a pile of fairly recent accessories from the 5.3 because why not, plus my plug wires matched the block paint scheme too much to throw out.

All my fingers and toes are crossed that I'm just one adapter cable away from firing this thing up.
RTYncJi.jpg

Time for another beer, the first one went down faster than the first gallon of coolant into the radiator.
LBJr2cS.jpg
 

89Suburban

Bull in the china shop
Supporting Member
Joined
Jan 10, 2013
Posts
15,318
Reaction score
42,676
Location
SE PA
Actually, I can't start it until the VVT-delete 5-wire to 3-wire cam sensor adapter arrives from the jungle warehouse. How come none of you scoundrels warned me about that?

Anyways, the oil pump is primed, and the updated BBP tune is loaded into the PCM/TCM. New torque converter and a bunch of other new bits and bobs, but I reused a pile of fairly recent accessories from the 5.3 because why not, plus my plug wires matched the block paint scheme too much to throw out.

All my fingers and toes are crossed that I'm just one adapter cable away from firing this thing up.
View attachment 434649

Time for another beer, the first one went down faster than the first gallon of coolant into the radiator.
View attachment 434650


Fine job sir, deserves a nice frosty bev for sure.
 

mikeyss

Full Access Member
Joined
Nov 11, 2011
Posts
1,710
Reaction score
3,269
Location
Longmont, Colorado.

Attachments

  • IMG_20190316_124421373.jpg
    IMG_20190316_124421373.jpg
    251.3 KB · Views: 2
  • IMG_20190316_124404522.jpg
    IMG_20190316_124404522.jpg
    373.9 KB · Views: 2
  • IMG_20190316_124412956.jpg
    IMG_20190316_124412956.jpg
    247 KB · Views: 3
  • IMG_20190316_132920619.jpg
    IMG_20190316_132920619.jpg
    318.3 KB · Views: 3

Charlie207

Full Access Member
Joined
Apr 13, 2021
Posts
1,688
Reaction score
3,372
Location
LFOD, New Hampshire
For some reason the official Dorman website has the wrong stud specs, and if you order what they say fits the heads of an LS you'll have a bad time.

I brought a manifold bolt into AutoZone to compare, and the "official" Dorman parts are 1.5 thread pitch, but an LS head is 1.25 (metric).
 
Top