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.

Monz11

Full Access Member
Joined
Mar 20, 2020
Posts
258
Reaction score
624
Location
Da Burg, Fl
Cracked block...seriously! WTF, just finished rewiring stereo, installing new carpet, and custom AC lines.
I sent her to my buddy for engine R&R, just don't have the time and patience.

Any suggestions on new engine boosted under 5k?
Been researching short blocks, bc who knows what's inside and can be used. Seems Thompson has best price for a forged block at 800 hp!

Now hv to figure out if tranny will hold...another PITA!
 

RooTBeeRthe1st

Full Access Member
Joined
Jul 11, 2018
Posts
1,136
Reaction score
2,599
Been researching short blocks, bc who knows what's inside and can be used. Seems Thompson has best price for a forged block at 800 hp!

Now hv to figure out if tranny will hold...another PITA!
Forged block? You must be going for big power!
 

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
27,101
Reaction score
40,992
Location
Stockton, Ca.
Been researching short blocks, bc who knows what's inside and can be used. Seems Thompson has best price for a forged block at 800 hp!

Now hv to figure out if tranny will hold...another PITA!
I know you built that engine, where was the original block sourced from? and was it modified?
 

j91z28d1

Full Access Member
Joined
Feb 28, 2022
Posts
3,479
Reaction score
4,319
Forged internals...looking at an aluminum instead of iron, so it's not so bloody heavy


might look for a 6.0 from a hybrid. the whole trucks can be found cheap on market place over the afm failures or hybrid battery dying and not being worth fixing. both go out about the same time and makes its but really worth fixing one without replacing the other.

aluminum block, never been abused, enough bore to take either style head. has higher compression pistons, but you'll be using new pistons anyways.

seen them practically giving them away non running.
 

Monz11

Full Access Member
Joined
Mar 20, 2020
Posts
258
Reaction score
624
Location
Da Burg, Fl
might look for a 6.0 from a hybrid. the whole trucks can be found cheap on market place over the afm failures or hybrid battery dying and not being worth fixing. both go out about the same time and makes its but really worth fixing one without replacing the other.

aluminum block, never been abused, enough bore to take either style head. has higher compression pistons, but you'll be using new pistons anyways.

seen them practically giving them away non running.
Th!nks, but probably going to end up buying a short block, most of the internals are probably toast...
Cheaper than parting out, machine work, building, etc. And I'm NOT doing it this time!
 

Forum statistics

Threads
133,659
Posts
1,888,988
Members
98,903
Latest member
JMiner
Top