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.

Just Fishing

Can't fix stupid
Joined
Aug 30, 2020
Posts
3,936
Reaction score
8,548
Location
Utah
Anyone have experience with full roller rockers?
Since i can go over 550 with these heads, I'm thinking about a higher ratio.
maybe 1.72 or 1.8

I'm assuming I'll need a valve cover spacer...
 

Rocket Man

Mark
Supporting Member
Joined
Dec 25, 2014
Posts
26,004
Reaction score
50,862
Location
Oregon
Anyone have experience with full roller rockers?
Since i can go over 550 with these heads, I'm thinking about a higher ratio.
maybe 1.72 or 1.8

I'm assuming I'll need a valve cover spacer...
I have Yella Terra full rollers on my 02 blown 6.0. They’re rail mounted, no spacers needed.
 

Just Fishing

Can't fix stupid
Joined
Aug 30, 2020
Posts
3,936
Reaction score
8,548
Location
Utah
So what i'm thinking...


Assuming i understand this correctly,
The cam i have has a rough .550 lift, so divide that by 1.7, then times that by the ratio to get the cam side lift..
so it looks like with 1.8 ratio, I'll get .582 lift.

:hmmm2:
 

Just Fishing

Can't fix stupid
Joined
Aug 30, 2020
Posts
3,936
Reaction score
8,548
Location
Utah
Oh and my pos neighbor has started his games again.

Trolling me with different people every day, waiting for me to go work my yard...

So i decided today to see what happens.
Yup, as soon as i try and work on my yard, he is a victim of me trying to ruin his time when ever he is outside!


So i trimmed my trees, nice view with security cameras...

I want trees.
Big row of trees.
Evergreens.

Tahoe took all of my $$$ and trees maybe next year.

I also tried to find bamboo we could plant, but the wife got real verbal with a NO.
*sigh*

Can't wait till i finish the tahoe, i have property that misses me.
 

08z71bgm

Supporting Member
Joined
Jul 2, 2020
Posts
758
Reaction score
1,108
Location
Long Island, NY
View attachment 305128

Where they ended up, the other one i was about to smooth it out to make it look better.
then i decided i better check the head gasket fitment before i spent another 3hrs flattening and blending the bowl.

Not bad, it's just that head gasket overhang i ended up with.
not much, but enough that I'm not willing to chance fkn up the only gaskets i can source right now.
:yaoface2:

I also couldn't find much on others that opened up a set of heads this much.
I figure about 1-2k to ship my Tahoe back home from the coast...
I'm making money here really.

:win:
Not terrible. Lay the gasket you planned on using and let’s see the overhang. What bore are you planning on having?
 

Bill 1960

Testing the Limits
Joined
Dec 17, 2020
Posts
1,480
Reaction score
2,862
Mine’s enjoying a day at the spa (dealership). Window regulator replaced and the airbag recall.

This is a dangerous place for me to be. This beauty was here a week ago. Still here, and looking for a home.

3C64DAAF-4FBC-4EA7-B808-CC4C5FC7845F.jpeg
 
Last edited:

Forum statistics

Threads
132,366
Posts
1,866,807
Members
96,989
Latest member
Mreedini
Top