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Mod | | | Forums66 Topics128,050 Posts1,055,646 Members48,426 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Sep 2005 Posts: 10 'Bolter | | 'Bolter Joined: Sep 2005 Posts: 10 | looking for the latest recommendation on what make and where to purchase a replacement mechanical fuel pump 1957 3100, 235 engine with dual Rochester carbs Thank You | | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | NAPAOne year warranty. Rebuildable with hex bolt closure.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn | | | | | Joined: Feb 2005 Posts: 1,633 'Bolter | | 'Bolter Joined: Feb 2005 Posts: 1,633 | I used a kit from Then and Now to rebuild my glass bowl pump. But if the NAPA pump is rebuildable, that might be a good choice.
~ John in Utah 1946 1/2Ton w/4-speed manual transmission w/1960 235 engineHere We GoFollow in his DITY Bay- If you think about it, it has been one year ago today!
| | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | A new fuel pump from NAPA is cheaper than a kit. It has a warranty for a year. The pump kits have the same Chinese parts that most new pump have. There is a chance of messing up the kit install into your old pump, if you have one. I don't know what pressure it takes for two carb bowls, this NAPA pump has 5 psi.. It's a local buy and easy to take back with no shipping, Free delivery if less than 5 mi from the store. It's Delphi and says "United States"
Reason for above comment/opinion: The best you can do to make a choice now-a-days is to mitigate small headaches, factor in best bang, due diligence, return difficulty, warranty, reputation of seller, rebuilt vs new... as I did above. I buy from everywhere, not just NAPA.
Last edited by bartamos; 04/15/2025 12:15 AM. Reason: punctuation/added reason for comment
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn | | | | | Joined: Dec 2020 Posts: 1,958 'Bolter | | 'Bolter Joined: Dec 2020 Posts: 1,958 | Delphi MF0073 Mechanical Fuel Pump used on my 1957 235. I bought 3 when they were cheaper than now.
~ BD. "You won't find me in an old folks home" Pioneer Florida Cracker 1958 Apache Stepside 1958 Apache 1/2 ton Panel 1959 Apache 1/2 ton Panel
| | | | | Joined: Sep 2005 Posts: 10 'Bolter | | 'Bolter Joined: Sep 2005 Posts: 10 | Hello Thank you all for your responses It is much appreciated! | | | | | Joined: Feb 2004 Posts: 29,767 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,767 | While having good fuel volume is important, running dual Rochesters on a 235 is WAY overcarbureted unless the engine is highly modified. Good luck! Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
| | | | | Joined: Mar 2014 Posts: 4,481 Moderator, Electrical Bay | | Moderator, Electrical Bay Joined: Mar 2014 Posts: 4,481 | Please listen to Jerry. He and Jon H (CarbKing) have for over a decade explained why and how a stock 235 will suffer from overcarburetion. For a stock 235 I suggest a stock intake manifold, a stock exhaust manifold and for the 1957 235 definitely a Carter YF3211S in good nick & adjustment. That Carter is a great improvement over the Rochester B or BC. As for a fuel pump, I have used an electric pump with great success since 1997...about the time fuel pumps in the USA stopped being produced. The pump I use is an AutoBest model F4027. It will output around 3 psi (which is just what you need) and my experience has been the pump lasts a long time. On Amazon currently you can buy one for less than $20 and it is made to handle ethanol-laced fuel. Good luck!
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
| | | | | Joined: Jul 2014 Posts: 892 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 892 | Regarding electric fuel pumps, buy 2. They are cheap. Install one and put the other under the seat along with a spare filter and hoses. This will save you a tow bill when the pump gives out. I'll spare you the story of changing one in the rain after a tow and a two mile walk to FLAPS each way. 1951 3800 1-ton"Earning its keep from the get-go"In the DITY Gallery1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971. | | |
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