Description
Part Number: 12-454-11
Holley 110 GPH Mechanical Fuel Pump – GM Big Block Chevy
Engineered for high-performance GM Big Block Chevy V8 engines, providing a massive 110 GPH free-flow fuel delivery without requiring an external pressure regulator.
Key Features & Benefits
- ☑ High-Flow Output: Delivers 110 GPH free flow rate to satisfy performance street and strip carbureted setups.
- ☑ No Regulator Required: Preset shutoff pressure between 6.5 and 8 PSI eliminates the need for an external fuel pressure regulator.
- ☑ 360-Degree Rotatable Body: Casting rotates to simplify mounting, fuel line routing, and frame rail clearance.
- ☑ Continuous High-RPM Duty: Built with heavy-duty internal valves and diaphragm for continuous high-rev competition.
- ☑ Standard NPT Plumbing: Features female 3/8″ NPT inlet and outlet ports for custom plumbing options.
Technical Specifications
| Brand | Holley |
|---|---|
| MPN | 12-454-11 |
| Engine Compatibility | GM Big Block Chevy (BBC V8) |
| Free Flow Rate | 110 GPH |
| Shutoff Pressure | 6.5 – 8.0 PSI |
| Inlet / Outlet Port Size | 3/8″ NPT |
| Fuel Type | Gasoline / Petrol |
| Pump Type | Mechanical |
What’s Included in the Box
- 1 x Holley 12-454-11 110 GPH Mechanical Fuel Pump
- 1 x Premium Mounting Gasket
As an industry leader in high-performance fuel systems for over a century, Holley products deliver unrivaled reliability. Trust JP Racing for genuine Holley motorsport hardware, complete with technical guidance and fast UK delivery.


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