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For Your Allstar Performance parts in Canada & USA, call Marken Performance @ 1-888-401-1362 

   Allstar Performance has improved this aluminum version of "Corvette style" water pump that was originally used on 1971-82 small block Chevrolet Corvettes but is now used throughout the motorsports industry.  Allstar part numbers ALL31105 & ALL31106 are built using all new components and an aluminum body for added weight savings over original cast iron pumps.   These water pumps  feature a 3/4" main shaft and bearings with a 3/4" pilot and a billet steel hub that has a set screw retainer for use on higher RPM applications.  
   Part # ALL31106 comes with 3/8"NPT bypass ports and cam stop hardware.  
   There is provisions for heater but holes not drilled or tapped.
   Block mount to fan hub dimension is 5-13/16". There is a set screw in hub.
   Note: Water pumps may need to be clearanced for use with 8" dampers. 
  
 
  

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