170+ GPH Mechanical Fuel Pump

Street/Strip Carbureted Applications Fits Small Block Chevy V8s Compatible with Gasoline

PART# 12-327-20

Suggested Retail: $146.95
Your Price: $131.95
Free Shipping on orders over $100*


Holley mechanical fuel pumps range from 80 GPH to 225 GPH in many various applications to meet the fuel demands of most engines. Whether you are looking for a street performance or an all out race mechanical fuel pump, Holley has the pump you need.


  • High output fuel flow
  • Flows 170+ GPH free flow
  • Shutoff pressure pre-set at 8 psi
  • Fuel pressure regulator is required (recommend Holley P/N 12-704)
  • Heavy duty construction for continuous high rpm operation
  • Redesigned high flow valves always ensure adequate fuel delivery
  • Fuel body casting can be rotated to accommodate various plumbing situations
  • 8AN O-ring (3/4"-16 SAE) inlet & outlet ports
  • Fittings "not" included


ApplicationDirect Replacement
Emission Code3
Free Flow GPH170
Free Flow LPH644
Fuel TypeGasoline
Inlet Size8 AN O-Ring - 3/4-16 SAE
Outlet Size8 AN O-Ring - 3/4-16 SAE
Product TypeFuel Pump
WarningCalifornia Proposition 65

Tech Resources

Parts & Kits


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

WARNING FOR 12-327-20: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
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    *Free Shipping & Handling only offered to the continental US on orders over $100.

    Some parts are not legal for use in California or other states with similar regulations.