Whether the build calls for a street performance or all-out race mechanical fuel pump, Holley's mechanical pump lineup covers 80 to 225+ GPH for most engine setups. This 170+ GPH pump is built for Chevrolet Big Block V8s running on gasoline in street/strip carbureted applications.
Specifications:
- Application: Chevrolet Big Block
- Category: Air and Fuel Delivery
- Free Flow Rate: 170 GPH / 644 LPH
- Fuel Type: Gasoline
- Material: Aluminum
- Finish: Silver
- Inlet: 8AN O-Ring, 3/4-16 SAE / 8AN ORB
- Outlet: 8AN O-Ring, 3/4-16 SAE / 8AN ORB
- Shutoff Pressure: Pre-set at 8 psi
- Product Type: Mechanical Fuel Pump
- Sub Category: Fuel Pumps and Related Components
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 12-454-20
A fuel pressure regulator is required (Holley recommends P/N 12-704); inlet and outlet fittings are not included. The fuel body casting can be rotated to accommodate various plumbing situations.
FAQ
What vehicles is this fuel pump designed for?
It's built for Chevrolet Big Block V8s in street/strip carbureted applications running on gasoline.
How much fuel does it flow?
170+ GPH (644+ LPH) free flow.
Do I need a separate fuel pressure regulator?
Yes, a fuel pressure regulator is required; Holley recommends P/N 12-704.
Are inlet and outlet fittings included?
No, fittings are not included. The pump uses 8AN O-ring (3/4"-16) inlet and outlet ports.
Can the pump body be repositioned for different plumbing setups?
Yes, the fuel body casting can be rotated to accommodate various plumbing situations.

