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

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Just Fishing

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

My actual bore size is 4in
the gasket bore size is 4.1in

the head bore size is 4.1in
I had planned to keep it tight, but i wanted aluminum to touch 100% of the gasket surface.
on the one head i ended up with a tiny bit of overhang into the combustion chamber.
it's not terrible.
I can do another check and maybe a picture, but as of right now i'm really planning to not touch the gasket again until i'm ready to install the heads.
 

Just Fishing

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What fuel pump are you guys using?

I just got a prime day fuel transfer pump ordered, leaning towards dropping that tank while i'm at it.
new fuel pump and this hoe should be fully sorted once it's back together.
 

Just Fishing

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I also kind of want to cut a little access hole, then make a fancy hatch for it.
I have rivnuts, and a skilled welder available.

Not like i'm planning to part ways with this thing anytime in the near future.
:yaoface2:
 

iamdub

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I also kind of want to cut a little access hole, then make a fancy hatch for it.
I have rivnuts, and a skilled welder available.

Not like i'm planning to part ways with this thing anytime in the near future.
:yaoface2:

I almost went straight for this route. But, I have a lift and found I can have the tank dropped in half an hour. It needs to come down again. :mad:
 

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