Mr. Gasket High Flow Aluminum Water Pump - Polished Finish

Fits 1970-1991 Small Block Mopar 273/318/340/360

PART# 70340PG

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Mr. Gasket Performance Cast Aluminum water pumps are engineered to deliver an increased water flow, block pressure, and balanced delivery. These high output, aluminum pumps provide improved cooling for street, high performance and even racing applications. Equalized water flow distribution and pressure balanced water passages minimize internal engine hot-spots. Each pump features low pressure, as cast, aluminum alloy pump bodies that are coupled by a cold-rolled carbon steel impeller with double-welded front and rear faceplates to maximize flow and reduce cavitation.


  • As-cast Aluminum alloy housing
  • Front and Rear roller bearings to minimize pump noise
  • Cold-rolled carbon steel impeller featuring multi-van axial design
  • Double welded front and rear impeller faceplates to maximize flow and minimize cavitation
  • Available in natural as-cast and polished housing finishes
  • Applications approved for high revving engines (above 7,000 RPM)


ApplicationChrysler Small Block
BrandMr. Gasket
Emission Code5
Gaskets IncludedYes
Product TypeWater Pump
Pulley Pilot3/4"
Part Number70340PG


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.


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