A 79 chevy C-30 dually pickup w/ 454 V8

Here is a friend of ours chevy pickup. I've been told it's a 79. It has a 454 big block V8, a turbo 400 3 speed direct automatic, and dual exhaust which i don't know who makes the mufflers. We changed the carburetor to a edelbrock 4 barrel in place of the quadrapuke (quadrajet) carburetor. Quadrajets are good carbs but when they go bad, they're bad. The quadrajet on this was really bad, the throttle bushings were worn on it and it when the secondaries opens up i'm assuming it just dumps fuel like crazy because when we floored the gas it was like pop pop braaaaaap. With the old carb on it used a quarter tank of gas to drive 10 or 15 miles.

Category:

Autos & Vehicles

Tags:

• 1979
• chevy
• gmc
• 3500
• 30
• 2wd
• wheel
• drive
• dually
• ton
• pickup
• dodge
• ford
• 454
• 350
• big
• block
• dual
• exhaust
• loud
• automatic

[mjfpercussion]

I recommend magnafllows to make that 7.4 sound sweet!

[Hotrodx199]

@mjfpercussion Well the truck is kinda gone now it was a sweet truck except the the 7 mpg

[Hotrodx199]

@mjfpercussion Well the truck is kinda gone now it was a sweet truck except the the 7 mpg

[dieslelover]

is that even a 454 cuz aint 454's motor's ornge not black like a 305,350

[Hotrodx199]

Paint does wear, plus grease and oil doesn't help make the orange stick out much. But yes your correct, but even 305's and 350 as far as i know were orange too, but if you ordered a crate 350,305 they were black.

[FordSucksAlot123]

I wouldn't mind having one of those but a 4X4, and with a cummins in it.

[Hotrodx199]

I'd be satisfied even if it was a 2wd dually but a single cab with a cummins in it.

[tpvalley]

@Hotrodx199

should have bought an oxygen meter, u can buy them fairly cheaply to tell whether its rich or lean.

I can tell this is lean at idle by ear though.

generally when carbs wear(the old carb) they suck in air past the shaft seals and mixture goes lean; or did the old carb have a kind of CV flap and needle to meter fuel?

[BetoTijerina]

lawnmower engine

[Entertainmentcenter]

Dude, this is the truck I've been dreaming to own all my life a 1973-1979 era C30 Chevy Dually with crew cab, though if it were me, I'd jam a 572 big block under the hood and a have custom built 4x4 drive train underneath it . Then I'd put a brush bar with 2 LED off road lights, a custom steel back bar with 5 smiley face off road lights, a big ass receding trailer ball hitch, and fifth wheel plate attachment option on the bead. Maybe lift the truck about 4 inches or so.

[halofreak1180]

Shouldn't have swapped out a q-jet for that carter afb.

[stingraystud]

@TEEEJ69 agreed

[TEEEJ69]

quadrajets are good carbs when they are rebuild and dailed in right, they could out preform any edelbrock

[wildwelder87]

Not sure about other years, but from the early to late 80's GM painted the 454 and 350 truck engines black if they were in a HD emission class truck. The GM Corporate Blue paint would be found on the light duty truck engines. The 454 in my '84 dually still has the factory black paint.