Air and Fuel› Fuel Pumps, Regulators and Components
Holley
Fuel Pump: Big Block Chevrolet; HP Billet Mechanical Pumps; 170+ GPH
SKU: H00E 12-454-25
Moderate — 2–4 hours
Description
Part #: 12-454-25
The HP Billet Mechanical Pumps are constructed from CNC machined 6061-T6 aluminum to provide the utmost strength and superior looks. The HP pumps feature a CNC billet aluminum finish for long lasting good looks. The HP series also feature -8 AN inlet and outlet fittings already installed. The base can be rotated independently from the top so it can be tailored to your application. The HP series has a free-flow number of 170GPH and a pre-set idle fuel pressure of 7.5PSI. No regulator is required.
Features:
- HP series flow 170 GPH
- Made from 6061-T6 billet aluminum for durability & good looks
- HP series feature a CNC billet finish for good looks
- Male -8AN inlet and outlet already installed
- Preset Idle fuel pressure of 7.5 PSI
- A/N fittings included with all pumps
- Bases are independently rotatable from the top for ease of installation
- No fuel pressure regulator required
Street/Strip Carbureted Applications Fits Big Block Chevy V8s Compatible with Gasoline
Fitment
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Specifications
| Brand | Holley |
| Part Number | H00E 12-454-25 |
| Weight | 1.95 lb |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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