Fuel Pump Selection

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DSnyde34

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Fulton Kansas
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Dayton
Truck Year
1974
Truck Model
K20
Engine Size
454
I am currently in the process of my first Big Block Chevy rebuild. I have it completely torn down and am in the process of ordering parts. The motor is in a 74 K20 and I want to build it for low-end torque for towing but still have decent power on the top end. As this is my first ever rebuild I have questions for every part I replace. With that should I just get a stock replacement fuel pump or should I go with something with a higher flow rate and pressure? See below for details:

The truck has an SM465 Trans with a 205T-Case and 4.10 Gears
454 Mark IV Big Block Chevy
Stock Oval Port Heads
Std. Bore with flat top pistons
Putting in an 11-238-3 Comp Cam
Getting an Edelbrock Performer Intake Manifold - 2161
Currently has a 1406 Edelbrock 600 CFM Carb - If I have enough money left I want to switch to a Holley 4160 750 CFM Carb

Any feedback is appreciated Thank You!
 

Craig 85

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Nashville, TN
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Craig
Truck Year
1985
Truck Model
K30 SRW
Engine Size
454/TH-400/NP205
FYI if you get a factory 3 port fuel pump for the 454 it is different between the 2WD version and the 4wd version. I ran into this problem about 5 years ago. I'm not sure if the companies have fixed the issue. Carter/Napa was advertising the 2WD pump fit the 4wd.

Here's the difference: The correct pump for my '85 are the shorter version.

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Bennyt

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Surprise
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Ben
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C10
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350
A good quality stock style/ outlet/ psi pump should be fine if you really are focused on low end. If you plan to get on it a bunch, I'd probably buy the Edelbrock or Holley mechanical pumps. Probably best to do it for piece of mind anyways.

For carb, again my opinion, you'd be better off with a professionally built Quadrajet. Holley might make more power on dyno for racing but it'll will rarely match the drivability and mpgs of a Quadrajet.
 

nvrenuf

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Mobile, Al.
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John
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1991
Truck Model
K5
Engine Size
454
Any carb you get is only going to need 7.5 psi max otherwise it’ll start to push fuel past the needle and seat, a stock type pump is fine.

+1 vote for a good quadrajet.
 

ali_c20

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Austria
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Alexander
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1974, 1979
Truck Model
C20, K5
Engine Size
350, 350
I use carter pumps, they are reasonable priced and I never had problems with them.
 

sidschev

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Arkansas
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sidney
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1984
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c1500
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350
im a stock pump guy. no need for anything else. reliable . 750 is too much
 

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