2004 6.0 NV4500 Tahoe

[pwtr02ss]

That's porting, valve job everything but assembly and disassembly. I'd seriously reconsider the fast intake save the money and get a TBSS or NNBS intake and throttle body. Put the extra funds to heads IMO.

This. The nnbs intake is great bang for the buck. Do a good cam, heads, stall, tune

 

[Dantheman1540]

This. The nnbs intake is great bang for the buck. Do a good cam, heads, stall, tune

They are ugly as sin though. The NNBS truck engine cover helps and throws people off too

 

[pwtr02ss]

They are ugly as sin though. The NNBS truck engine cover helps and throws people off too

yes, the cover definitely helps. I’m kinda partial though...

 

[Dantheman1540]

yes, the cover definitely helps. I’m kinda partial though...
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Me too lol, I was somewhere awhile back and when the guy saw the engine cover he thought it was an LY6 from one of the newer trucks. I let him roll with it lol.

Sweet truck btw! I've always wanted something just like that as a shop truck and backup DD.

 

[pwtr02ss]

Me too lol, I was somewhere awhile back and when the guy saw the engine cover he thought it was an LY6 from one of the newer trucks. I let him roll with it lol.
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The Escalade/sss engine covers are by far the most attractive. I like the nnbs for the simple fact that it looks more modern than the regular nbs.

 

[Tonyrodz]

This. The nnbs intake is great bang for the buck. Do a good cam, heads, stall, tune

Maybe I should've went with that.

yes, the cover definitely helps. I’m kinda partial though...
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KILLER!!! I love it! Patina/Sleeper like a MOFO!

 

[Dantheman1540]

The Escalade/sss engine covers are by far the most attractive. I like the nnbs for the simple fact that it looks more modern than the regular nbs.

Do the Escalade/sss covers fit the TBSS intake? Never researched it but if I ever found an esky cover cheap I might get one if it fits.

 

[Sam Harris]

That's porting, valve job everything but assembly and disassembly. I'd seriously reconsider the fast intake save the money and get a TBSS or NNBS intake and throttle body. Put the extra funds to heads IMO.

This. The nnbs intake is great bang for the buck. Do a good cam, heads, stall, tune

So I still need to find heads and decide on those.. I was planning to go with the FAST, largely due to the TB size difference. IIRC, the TBSS / NNBS, is 92 rather than 87. I figure a 102 would help use up the duty cycles of my e85 injectors. [emoji16]
I’m also wondering if porting the heads in an N/A motor is really that helpful, or if the additional flow would be better suited to a forced induction application. I’m a total noob on this stuff.

 

[pwtr02ss]

Do the Escalade/sss covers fit the TBSS intake? Never researched it but if I ever found an esky cover cheap I might get one if it fits.

They do not

 

[pwtr02ss]

So I still need to find heads and decide on those.. I was planning to go with the FAST, largely due to the TB size difference. IIRC, the TBSS / NNBS, is 92 rather than 87. I figure a 102 would help use up the duty cycles of my e85 injectors. [emoji16]
I’m also wondering if porting the heads in an N/A motor is really that helpful, or if the additional flow would be better suited to a forced induction application. I’m a total noob on this stuff.

Imo, the fast can hurt power. You will never utilize the volume. Ported heads definitely help. It will help power, torque, and fuel mileage.