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1990 Chevy k3500 454 7.4 TBI 4x4

Running a Turbo 400 3speed auto
- Smoothk9
- Post #4
- Feb 2, 2022
- Forum: Engine Performance + Maintenance
1990 Chevy k3500 454 7.4 TBI 4x4

Trying to figure out which model on the sniper efi kit will fit my truck. Help ! Trying to get it ordered asap unless someone has another route the recommend to pair with stage 4 cam, Jegs performance aluminum headers, stage 2 shift kit. Eldelbrock rpm intake manifold
- Smoothk9
- Thread
- Feb 1, 2022
- Replies: 5
- Forum: Engine Performance + Maintenance
90 k3500 dually fenders help

Hey guys my dually has the rear fenders in decent shape but the support metals that help hold the the fenders in place are not attached and are dangling…. First dually help wtf do I do? I’ll take and post pics
- Smoothk9
- Thread
- Jan 26, 2022
- Replies: 2
- Forum: Paint / Body / Detailing
Cruising at 80mph with turbo 400

Thanks for the advice yeah I’ll finish the top end kit and cooling system upgrades then I’ll go switch trans
- Smoothk9
- Post #11
- Jan 26, 2022
- Forum: Transmissions
Cruising at 80mph with turbo 400

Actually my trucks got 4.11 gears ⚙️ front and back. And it’s on 265/75/16 planning on lifting and putting 305/75/16
- Smoothk9
- Post #10
- Jan 26, 2022
- Forum: Transmissions
Cruising at 80mph with turbo 400

Want to find a way to modify the turbo400 to cruise at 80mph and save some gas…. Sorry maybe it’s impossible just thought I’d ask My plan is doing a top end kit on the 454 and will be lifted on 35s at least. Should I stay with the turbo 400 or swap to another transmission.
- Smoothk9
- Thread
- Jan 7, 2022
- 454 transmission turbo400
- Replies: 12
- Forum: Transmissions
90 K3500 dually 4x4 454 7.4L

He’s my cart right now am I nuts would this work? Help
- Smoothk9
- Post #2
- Jan 2, 2022
- Forum: Engine Performance + Maintenance
90 Chevy GMT400 k3500 Dually 4x4 gas ⛽️ lift kits?

Is it this one?
- Smoothk9
- Post #30
- Jan 2, 2022
- Forum: Offroad Build Threads
90 Chevy GMT400 k3500 Dually 4x4 gas ⛽️ lift kits?

Thanks looking for it now says it’s for 98-2006 fitmen only
- Smoothk9
- Post #29
- Jan 2, 2022
- Forum: Offroad Build Threads
90 K3500 dually 4x4 454 7.4L

So I’m need expert advise this truck will be lifted bigger mud tires etc….. What can I do right off the bat for power bolt on…. I got the 230hp 3seed turbo400 tranny version of the 454 …. I’d like to have at least 400hp to the wheels to moving this big ***** around. If you got exact links...
- Smoothk9
- Thread
- Jan 2, 2022
- 454 4x4 dually
- Replies: 2
- Forum: Engine Performance + Maintenance
90 Chevy GMT400 k3500 Dually 4x4 gas ⛽️ lift kits?

Quick update basically with any of the lifts , I would still need to get custom u bolts for the rear….. and figure out a way to reinstall the towing bags. Haven’t ordered anything yet trying to see if there’s a kit you guys know for sure would fit…
- Smoothk9
- Post #19
- Dec 31, 2021
- Forum: Offroad Build Threads
90 Chevy GMT400 k3500 Dually 4x4 gas ⛽️ lift kits?

No worries sir it’s badass lifted or slammed
- Smoothk9
- Post #11
- Dec 26, 2021
- Forum: Offroad Build Threads
90 Chevy GMT400 k3500 Dually 4x4 gas ⛽️ lift kits?

Only 4x4 in my life
- Smoothk9
- Post #9
- Dec 26, 2021
- Forum: Offroad Build Threads
90 Chevy GMT400 k3500 Dually 4x4 gas ⛽️ lift kits?

I’ll order the $1300 kit. Any chance you guys know what dually spacers I’ll need to run bigger tires?
- Smoothk9
- Post #6
- Dec 26, 2021
- Forum: Offroad Build Threads
90 Chevy GMT400 k3500 Dually 4x4 gas ⛽️ lift kits?

I was thinking about about either of these two Sir. Budget option: $849 https://www.roughcountry.com/gm-suspension-lift-kit-249n2.html Nicer option: $1300 https://www.roughcountry.com/gm-suspension-lift-kit-16130.html I want to be able to do both take out the wife on a nice date night yet...
- Smoothk9
- Post #3
- Dec 26, 2021
- Forum: Offroad Build Threads
No 4th gear

Aaaahhh I see….. I also have 4.11 gears ⚙️ which would explain why it kills gas so quickly,
- Smoothk9
- Post #3
- Dec 25, 2021
- Forum: Transmissions
90 Chevy GMT400 k3500 Dually 4x4 gas ⛽️ lift kits?

Hi new here trying to find a great lift kit for the dually, would love ❤️ a 6 inch lift at least… any insights please school me, newbie to the box Chevy and new to the dually.
- Smoothk9
- Thread
- Dec 25, 2021
- #dually #gmsteez #gmt400 #c1500 #custom #nothingissacred #k3500 #lift #lifted #liftkit
- Replies: 35
- Forum: Offroad Build Threads
No 4th gear

1990 Chevy GMT400 k3500 dually 7.4L V8 454 4x4 It goes thru all 3 but never into 4th! How bad could this be, just bought it. Need serious assistance, first time box Chevy owner, and first time dually owner….. Thanks I’m advance
- Smoothk9
- Thread
- Dec 25, 2021
- Replies: 5
- Forum: Transmissions