77 C3 Fuel pump
Thread Starter
7th Gear
Joined: Aug 2024
Posts: 7
Likes: 0
From: Eastern Shore, VA
77 C3 Fuel pump
Hey all,
I have a 77 with the 350 small block bored up to 383. The fuel pump is leaking a little bit, I tightened up the hoses hoping it was just that but it looks like it's just pooling up on the base of the fuel pump it has the 3 port one linked below:
https://www.topflightautomotive.com/products/ca-1970-1981-chevrolet-corvette-fuel-pump-replacement-small-block/
Is there a good upgrade fuel pump that fits in there to account for the bore? I see so many different pumps on zip or top flight I was just wondering what anyone has done in the past. Thanks in advance!
I have a 77 with the 350 small block bored up to 383. The fuel pump is leaking a little bit, I tightened up the hoses hoping it was just that but it looks like it's just pooling up on the base of the fuel pump it has the 3 port one linked below:
https://www.topflightautomotive.com/products/ca-1970-1981-chevrolet-corvette-fuel-pump-replacement-small-block/
Is there a good upgrade fuel pump that fits in there to account for the bore? I see so many different pumps on zip or top flight I was just wondering what anyone has done in the past. Thanks in advance!
Le Mans Master
Joined: Jun 2019
Posts: 7,642
Likes: 2,463
From: Indiana
I would thnk you wouldn’t need anymore than stock pump.
that said, crap shoot on quality. Look for airtex made n mexico but sme reported ac delco ok.
Think carter makes them all now anyway
look closer for where leak is and proper s hose. Pic?
here is a few i went thru..and non made for n usa claims..
https://www.corvetteforum.com/forums...mp-79-l82.html
that said, crap shoot on quality. Look for airtex made n mexico but sme reported ac delco ok.
Think carter makes them all now anyway
look closer for where leak is and proper s hose. Pic?
here is a few i went thru..and non made for n usa claims..
https://www.corvetteforum.com/forums...mp-79-l82.html
Race Director
Joined: Nov 2006
Posts: 13,151
Likes: 7,764
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
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Cruise-In VIII Veteran
I wouldn't think a 383 would need anything special in the way of a fuel pump.
However, finding a quality replacement pump can be a issue as I've been reading on here for the last several years.
So much so I decided to go electric, swap out my entire fuel system.
Best of luck finding a quality pump.
However, finding a quality replacement pump can be a issue as I've been reading on here for the last several years.
So much so I decided to go electric, swap out my entire fuel system.
Best of luck finding a quality pump.
Le Mans Master
Joined: May 2007
Posts: 5,009
Likes: 1,116
From: North tonawanda NY
There isnt very many replacements that deliver the correct fuel pressure and have the return line going back to the tank. The stock pump is still the best choice here IMO.
