What carb to replace my Quadrajet - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**IT Cowboy** · Today, 02:26 PM

My Quadrajet needs to be rebuilt and my mechanic says $480 for removal and rebuild so I am just thinking about replacing it with an Edlebrock. Supposedly they come almost all adjusted and are easy to tune. So which one should I go with Someone on another site suggested the AVS 19069 as a newer better option than the 1406

Willshook · Today, 02:43 PM

The average mechanic can't reliably overhaul a Q-Jet. I know people will take exception to that, but I have yet to see an "overhaul" come out of a regular (non-classic or hot rod specialty) shop that wasn't FUBARd.

That said, not all that hard to do with parts and guidance (plus patience) from Cliff Ruggles Performance.

Edelbrock carbs require less tuning in a stock application, which is good because they are less tunable

https://www.holley.com/products/fuel...parts/0-80555S

Specific Q-Jet replacement, including being spread-bore which works exceptionally well on our trucks since we cruise on the smaller primaries but can get some CFM if we need it from the huge secondaries. Extremely tunable like all Holley carbs but often requires some time to dial it in on initial installation for peak performance, drivability and economy.

Just remember that if you buy a square-bore carb you'll need an adapter.

geezer#99 · Today, 04:18 PM

I’d get one of these before I had a mechanic touch mine.

https://quadrajetpower.com/chevrolet...rajet-7042206/

They’ll even rebuild yours if you want.

ron350 · Today, 04:29 PM

If you have the erg to replace the Q-jet just bang your head against the wall till that erg goes away.

The Q-jet is one of the best carburetors ever made.

If you can use hand tools and can take pictures any one can rebuild a Q-jet with this book.

https://www.amazon.com/Rochester-Car.../dp/0895863014

I still have my copy from 1974.

LS short box · Today, 05:16 PM

Over on corvetteforum.com the is a member that's called "Lars". He is the go to guy for rebuilding QJ's. He gets great reviews.

**IT Cowboy** · Today, 06:07 PM

I am trying to figure out if rebuilt is worth it for the same or less than a new one

Today, 02:26 PM	#1
IT Cowboy Senior Member Join Date: Jan 2025 Location: Clarkdale, Arizona in a van down by the river Posts: 234	What carb to replace my Quadrajet My Quadrajet needs to be rebuilt and my mechanic says $480 for removal and rebuild so I am just thinking about replacing it with an Edlebrock. Supposedly they come almost all adjusted and are easy to tune. So which one should I go with Someone on another site suggested the AVS 19069 as a newer better option than the 1406 __________________ '72 C10 / 402 ___________________________________________ Freedom isn't safe, it requires you to take responsibility for your own life, your own safety, and your own success. It carries with it the possibility of failure and the understanding that you're working without out a safety net. If you give the state the responsibility for any of these you also give up the freedom that accompanies the responsibility.

Today, 02:43 PM	#2
Willshook Registered User Join Date: Jun 2019 Location: Chehalis, WA Posts: 128	Re: What carb to replace my Quadrajet The average mechanic can't reliably overhaul a Q-Jet. I know people will take exception to that, but I have yet to see an "overhaul" come out of a regular (non-classic or hot rod specialty) shop that wasn't FUBARd. That said, not all that hard to do with parts and guidance (plus patience) from Cliff Ruggles Performance. Edelbrock carbs require less tuning in a stock application, which is good because they are less tunable https://www.holley.com/products/fuel...parts/0-80555S Specific Q-Jet replacement, including being spread-bore which works exceptionally well on our trucks since we cruise on the smaller primaries but can get some CFM if we need it from the huge secondaries. Extremely tunable like all Holley carbs but often requires some time to dial it in on initial installation for peak performance, drivability and economy. Just remember that if you buy a square-bore carb you'll need an adapter.

Today, 04:18 PM	#3
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,766	Re: What carb to replace my Quadrajet I’d get one of these before I had a mechanic touch mine. https://quadrajetpower.com/chevrolet...rajet-7042206/ They’ll even rebuild yours if you want.

Today, 04:29 PM	#4
ron350 Registered User Join Date: Apr 2007 Location: Birmingham AL Posts: 270	Re: What carb to replace my Quadrajet If you have the erg to replace the Q-jet just bang your head against the wall till that erg goes away. The Q-jet is one of the best carburetors ever made. If you can use hand tools and can take pictures any one can rebuild a Q-jet with this book. https://www.amazon.com/Rochester-Car.../dp/0895863014 I still have my copy from 1974. __________________ Stock 75 C10 step side. 350 2 BBL, 350 trans. 150K miles. Last edited by ron350; Today at 04:57 PM.

Today, 05:16 PM	#5
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 2,196	Re: What carb to replace my Quadrajet Over on corvetteforum.com the is a member that's called "Lars". He is the go to guy for rebuilding QJ's. He gets great reviews.

Today, 06:07 PM	#6
IT Cowboy Senior Member Join Date: Jan 2025 Location: Clarkdale, Arizona in a van down by the river Posts: 234	Re: What carb to replace my Quadrajet I am trying to figure out if rebuilt is worth it for the same or less than a new one __________________ '72 C10 / 402 ___________________________________________ Freedom isn't safe, it requires you to take responsibility for your own life, your own safety, and your own success. It carries with it the possibility of failure and the understanding that you're working without out a safety net. If you give the state the responsibility for any of these you also give up the freedom that accompanies the responsibility.



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