What type of carb? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70c10 · 08-07-2002, 08:08 AM

Hey guys,
I got a 71' project truck with a 307. What kind of 4 barrell carb will bolt right on?. It has a 2 barrell now. I wanted to go to the junk yard and look around for a Q-Jet or similar. Thanks

*Zkast* · 08-07-2002, 08:32 AM

There isn't any type of a 4barrell that will bolt on to a 2barrell intake without installing an adapter. They do make these rochester adapter plates but It would be much more effective to just install a new intake.

Pick up a 4barrell intake but be leary of buy carbs from junkyards. If the thing sits too long it oxydizes the fuel and ruins the carb.

70c10 · 08-07-2002, 10:07 AM

Zkast,
You're right about the intake. My project truck looks like yours!. Nice pics you got there. I wish the motor looked like yours!

ChevLoRay · 08-07-2002, 11:21 AM

Not that this helps, but I gave away my 4-bbl intake a few months ago, after installing an Edelbrock Performer. I have an Edelbrock 1405 (manual choke) square-bore carb that I pulled off and replaced with an Edelbrock 1901 (I think this is the right number) Q-Jet. I love it and I recommend it. Do what you have to do, tho.

**MikeB** · 08-07-2002, 10:25 PM

Holley makes a 500cfm 2-barrel that will bolt on to your manifold. Also, I think the big American iron, like Olds, Buick, and Pontiac, used large two barrel Rochesters.

Blue_71 · 08-07-2002, 11:26 PM

if you need it, ive got a factory 4 barrel (q-jet) aluminum intake ill sell, only thing is it has EGR so youll have to get a block off plate

70shortnphat · 08-07-2002, 11:46 PM

Yea, you can get a block off plate or do like the previous owner of my truck did and fill the hole full of J-B Weld! Some people???

08-07-2002, 08:08 AM	#1
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	What type of carb? Hey guys, I got a 71' project truck with a 307. What kind of 4 barrell carb will bolt right on?. It has a 2 barrell now. I wanted to go to the junk yard and look around for a Q-Jet or similar. Thanks __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

08-07-2002, 10:07 AM	#3
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	Zkast, You're right about the intake. My project truck looks like yours!. Nice pics you got there. I wish the motor looked like yours! __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

08-07-2002, 11:21 AM	#4
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Not that this helps, but I gave away my 4-bbl intake a few months ago, after installing an Edelbrock Performer. I have an Edelbrock 1405 (manual choke) square-bore carb that I pulled off and replaced with an Edelbrock 1901 (I think this is the right number) Q-Jet. I love it and I recommend it. Do what you have to do, tho. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

08-07-2002, 10:25 PM	#5
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,470	Holley makes a 500cfm 2-barrel that will bolt on to your manifold. Also, I think the big American iron, like Olds, Buick, and Pontiac, used large two barrel Rochesters. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

08-07-2002, 11:46 PM	#7
70shortnphat "See the U.S.A....." Join Date: Apr 2002 Location: Richmond TX. Posts: 269	Yea, you can get a block off plate or do like the previous owner of my truck did and fill the hole full of J-B Weld! Some people??? __________________ 1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston)

08-07-2002, 08:32 AM	#2
Zkast Account Suspended Join Date: May 2002 Location: Olathe, Kansas Posts: 929	There isn't any type of a 4barrell that will bolt on to a 2barrell intake without installing an adapter. They do make these rochester adapter plates but It would be much more effective to just install a new intake. Pick up a 4barrell intake but be leary of buy carbs from junkyards. If the thing sits too long it oxydizes the fuel and ruins the carb.



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