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04-28-2015, 10:19 PM
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#1 |
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Registered User
Join Date: Nov 2009
Location: Nebraska
Posts: 1,034
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Rochester 4G rebuild?
I know a lot of people rebuild Rochester Quadrajets but what about its predecessor, the 4G, that came from the factory on 327 trucks. Is there a 4G guru out there that anyone knows of?
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04-28-2015, 10:46 PM
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#2 |
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Registered User
 Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,192
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Re: Rochester 4G rebuild?
Its been a long time but I used to do some. They are actually easier then a Q-jet. Take care adjusting the float levels. They are about like a 2GC but larger.
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04-29-2015, 11:09 AM
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#3 |
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Moderator
 Join Date: Dec 2012
Location: ON, Canada
Posts: 2,152
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Re: Rochester 4G rebuild?
Give it a go. I'm putting a 2G back together this afternoon. Disassemble, match gaskets, clean, reassemble.
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04-29-2015, 12:25 PM
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#4 |
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Check The Champ, Demonstrator
Join Date: Jun 2009
Location: Montreal,Quebec
Posts: 6,625
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Re: Rochester 4G rebuild?
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1963 Chevrolet Truck Literature LINK: https://picasaweb.google.com/113840717762774560215 YouTube Channel with 20+ Original Chevrolet Truck Salesmen, Mechanics & Service Department Training Slideshows. https://www.youtube.com/results?sear...otruk63&page=1 |
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04-29-2015, 11:07 PM
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#5 |
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Registered User
Join Date: Nov 2009
Location: Nebraska
Posts: 1,034
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Re: Rochester 4G rebuild?
Are many people still running this OEM carb on their 327 trucks? Can't seem to find much about them here on the site.
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WANTED: * 60-66 Chevy and GMC FACTORY PHOTOGRAPHY (scans) of pickups and carryalls. Custom Camper Club-- Own a 65-66 Custom Camper? Join us at: http://67-72chevytrucks.com/vboard/g...hp?groupid=117 |
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04-30-2015, 01:12 PM
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#6 |
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Registered User
Join Date: Apr 2007
Location: southern oregon
Posts: 76
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Re: Rochester 4G rebuild?
AFAIK I'm running the original carb, pretty sure it's 4G. Drove it for about 5 or 6 years after I bought it without being able to go over 45mph. Finally pulled it off and took it to an old guy that rebuilt it. Did a bang up job, got up to 70 the first time I tried, still had plenty left but I had no desire to see how that truck handled any faster than that
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66 Custom Camper 327/ 4 spd. Bone Stock, down to the split rims |
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04-30-2015, 01:44 PM
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#7 |
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Registered User
Join Date: Nov 2011
Location: fayetteville nc
Posts: 10,338
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Re: Rochester 4G rebuild?
I'm interested also. I have a 4g that came on the 1958 348 big block going in the fleetside and since it'll be a milder build than the one I just completed I'd like to retain the original carb.
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1963 Short bed step side SBW 427 big block and borg warner T-16 HD 3 speed manual http://67-72chevytrucks.com/vboard/s...d.php?t=519869 1963 Short bed fleetside BBW 348 1st gen big block w/Powerglide http://67-72chevytrucks.com/vboard/s...d.php?t=619024 1964 Short bed trailer |
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04-30-2015, 04:18 PM
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#8 |
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Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,584
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Re: Rochester 4G rebuild?
I have found that 5G gives me lightning fast internet access. Wops sorry wrong web sight.
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04-30-2015, 05:58 PM
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#9 |
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Registered User
Join Date: Oct 2005
Location: Lancaster, ca
Posts: 117
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Re: Rochester 4G rebuild?
I have a core at home, I may give it a go. Ive rebuilt a couple of 2 gs
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Scott 63 C10 Stepside 230 1bbl Saginaw 3 spd |
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04-30-2015, 07:04 PM
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#10 |
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Moderator
Join Date: Dec 2012
Location: ON, Canada
Posts: 2,152
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Re: Rochester 4G rebuild?
Do it! My 2G was ridiculously easy. I really enjoyed it. I think I'll do the Mono on my truck, and the 4GC on my 65 Impala just to update them.
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