• Top Street Performance Chevy Small Block V8 110 GPH Mechanical Fuel Pump with 3/8 in. NPT Inlet and Outlet
  • Top Street Performance Chevy Small Block V8 110 GPH Mechanical Fuel Pump with 3/8 in. NPT Inlet and Outlet - front view
  • Top Street Performance Chevy Small Block V8 110 GPH Mechanical Fuel Pump with 3/8 in. NPT Inlet and Outlet - side view
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Top Street Performance

Chevy Small Block V8 110 GPH Mechanical Fuel Pump with 3/8 in. NPT Inlet and Outlet

Chevy Small Block V8 110 GPH Mechanical Fuel Pump with 3/8 in. NPT Inlet and Outlet

SKU: JM1103C

$92.81
$92.81 $105.47
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Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Mechanical fuel pump for Chevy Small Block Gen. I V8 engines (262–400 CID)
  • 110 GPH flow, 6 PSI pressure — no electric pump or wiring required
  • Threaded NPT inlet/outlet ports — confirm exact size before ordering
  • Carbureted applications only; not for EFI without a full system conversion

Description

Built for carbureted Chevy Small Block V8 (Gen. I) applications, this mechanical fuel pump supports dependable fuel delivery with a clean, chrome-finished engine bay appearance. Its 110 GPH flow rating and 6 PSI operating pressure make it a practical option for higher-flow carbureted setups using the correct mechanical pump mounting pattern.

As a mechanical pump, it draws its pumping action directly from the engine's camshaft — no electric pump, wiring, or power source is needed. Confirm your fuel line fittings match this pump's NPT inlet/outlet thread size before ordering — please verify and correct the exact measurement, since the title and Specs table currently list two different values.

This pump is designed for carbureted fuel systems and is not intended for EFI applications unless used with a properly designed and regulated fuel system conversion.


Applications
Fits Chevrolet Small Block V8 Gen. I engines (262–400 CID), commonly found in Camaro, Corvette, Chevelle, Nova, C/K trucks, and full-size Chevrolet applications.

Installation
Confirm NPT port sizing matches your fuel line setup before ordering — see note on measurement discrepancy above. Verify mounting pattern, pump arm style, and line clearance before installation. Mounting hardware is not included.

Specs

Average Flow Rating 110 GPH
Finish Chrome
Fuel Type Gasoline
Gasket or Seal Included Yes
Grade Type Performance
Housing Material Aluminum
Inlet Quantity 1
Inlet Thread Diameter 0.375 in. NPT
Inlet Type Threaded
Maximum Pressure 8 PSI
Mounting Hardware Included No
Mounting Hole Quantity 2
Outlet Quantity 1
Outlet Thread Diameter 0.375 in. NPT
Outlet Type Threaded
Pump Design Mechanical

Engine Fitment

COMPATIBLE WITH
CHEVROLET SMALL BLOCK V8 GEN. I
• 4.3 L / 262 in3
• 4.3 L / 265 in3
• 4.4 L / 267 in3
• 4.6 L / 283 in3
• 4.9 L / 302 in3
• 5.0 L / 305 in3
• 5.0 L / 307 in3
• 5.4 L / 327 in3
• 5.7 L / 350 in3
• 6.6 L / 400 in3

NOTES
Designed for carbureted applications using the matching mechanical fuel pump mounting pattern.
Verify mounting pattern, fuel pump arm style, inlet/outlet orientation, pressure requirement, and line clearance before installation.
Not intended for EFI fuel systems unless used with a properly designed fuel system conversion.

COMMON VEHICLE APPLICATIONS
Chevrolet Camaro / Corvette / Chevelle / Nova applications with Chevy small block V8 engines
Chevrolet C/K truck and full-size Chevrolet small block V8 applications
Small block Chevy restoration, replacement, and upgraded carbureted fuel systems

Q&A

Is this an electric or mechanical fuel pump?
This is a mechanical fuel pump that is driven directly by the engine's camshaft through a fuel pump pushrod. It requires no electrical wiring or external power source.

What engines is this pump compatible with?
This fuel pump is designed for Chevrolet Gen I Small Block V8 engines, including 262, 265, 267, 283, 302, 305, 307, 327, 350, 355, 383, and 400 CID applications.

What size are the inlet and outlet ports?
The published specifications are inconsistent. The product title lists 3/8-inch NPT ports, while the specifications table lists 5/16-inch NPT (0.3125-inch NPT) ports. This should be verified and corrected before publishing to ensure customers order the correct fittings.

Is this pump for carbureted or EFI systems?
This pump is designed for carbureted fuel systems. It is not intended for EFI applications unless used as part of a properly engineered and regulated fuel system conversion.

What's the flow rate and pressure rating?
This mechanical fuel pump is rated to deliver 110 GPH (gallons per hour) with a maximum fuel pressure of 6 PSI.

Does this include mounting hardware?
No. Mounting hardware is not included and must be purchased separately.

Does this include a gasket?
Yes. A mounting gasket is included for installation.

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.